of categories (k) = 5 Show that two such proofreaders working independently have a \(99.96\%\) chance of detecting an error in a piece of written work. Question 2. A laboratory performs \(20\) such tests daily. of companies = 200 What number of customers does Shylock most often see in the bank the moment he enters? at separates the lower 40 % of the bills from the rest. The number of voters favoring a candidate 3. Mx (1) = (0.21+0.79e). If the player rolls doubles all three times there is a penalty. Grapefruit are sold by the dozen. Discrete Continuous Continuous Continuous (Round your answer to three, A:Given Information: N: the number of eggs laid each month by a hen. Be on top of it. If the ball does not land on red he loses his dollar. (Make a reasonable estimate based on experience, where necessary.). Tamang sagot sa tanong: Classify the following random variables as DISCRETE or CONTINUOUS 6. the speed of a car on Route 3 1. the number of questions on a math 2. the number of puppies in a liter 3. the letters in the English alphabet4. A discrete variable is a variable whose value is obtained by counting. the number of defective computers produced by a manufacturer. Three coins are tossed and the random variable Z gives the number of tails. So, let's take a look at the following three examples. 1) Number of customers served by a coffee shop per hour. Some cases may have more than one interpretation, so briefly indicate your reasoning if you think there may be some ambiguity. Circle the correct answer. sample size (n)=25 standard deviation (s)=8mL Complete: The absolute value of a number is its distance from ? a. Instead of testing all \(600\) blood samples to find the expected \(12\) diseased individuals, investigators group the samples into \(60\) groups of \(10\) each, mix a little of the blood from each of the \(10\) samples in each group, and test each of the \(60\) mixtures. A roulette wheel has \(38\) slots. Movie lengths are an uncountable set. An English-speaking tourist visits a country in which \(30\%\) of the population speaks English. Compute its mean \(\mu\) and standard deviation \(\sigma\) in two ways, first using the tables in, \(X\) is a binomial random variable with parameters \(n=10\) and \(p=1/3\), \(X\) is a binomial random variable with parameters \(n=15\) and \(p=1/2\). 1.9 Classify the following random variables as discrete or continuous. Of all college students who are eligible to give blood, about \(18\%\) do so on a regular basis. The % change is computed in terms of % increase and % decrease. Find the most likely number of skeins that contain knots. The number of games in the next World Series (best of up to seven games). Two will look at discrete variables, and one will look at continuous. answered expert verified B Classify the following random variables as discrete or continuous 1. the number of defective computers produced by a manufacturer 2. the weight of newborns each year in a hospital 3 the number of siblings in a family of a region 4 the amount of paint utilized in a building project One, A:This question examines the correlation between height and weight in a study of a representative, Q:An engineer was interested in the effect of two factors on strength of sheet castings of a Example Discrete Variables: The number of new cases of influenza in a particular county in a coming month. Ten percent of all purchasers of a refrigerator buy an extended warranty. The mean \(\mu\) of \(X\). The number of kernels of popcorn in a \(1\)-pound container. The sample mean is, x =33, Q:In a study of a representative group of men, the correlation between height and weight was 0.43. $$ $$ Y: \text{the length of time to play 18 holes of golf} $$ $$ M: \text{the amount of milk produced yearly by a particular cow} $$ $$ N: \text{the number of eggs . 3.21 \[\begin{array}{c|c c c c c c} x &42 &43 &44 &45 &46 &47 \\ \hline P(x) &0.10 &0.23 &0.34 &0.25 &0.05 &0.02\\ \end{array}\]. O discrete. Q:The current U.S. population is about 330 million people. The number of deaths per year attributed to lung cancer. Adverse growing conditions have caused \(5\%\) of grapefruit grown in a certain region to be of inferior quality. Find the probability that a box of one dozen grapefruit will contain two or more grapefruit of inferior quality. P: the number of building permits . 2. weight of the newborns each year in a hospital 3. the number of siblings in a family of a region f 4. the speed of a car 5. the amount of sugar in a cup of coffee A:Given that Thus for example if a one and a five are rolled, \(X=4\), and if two sixes are rolled, \(X=0\). 1 vising nurse wants to visit all patients in one day. 5. 2.) An insurance company will sell a \(\$90,000\) one-year term life insurance policy to an individual in a particular risk group for a premium of \(\$478\). The speed of a car 5. View this solution and millions of others when you join today! the length of time to play 18 holes of golf. Using the answers to (b) and (c), decide whether or not the additional cost of the installation of the cover will be recovered from the increased revenue over the first ten years. The result shows that the classification accuracy of the C-RF model is 85%, which is improved by 8, 9, 4 and 3% respectively compared with CART, SVM, CNN and RF. About \(12\%\) of all individuals write with their left hands. Find the average number of nails per pound. It is rejecting the standard. If so, give the values of \(n\) and\(p\). An insurance company estimates that the probability that an individual in a particular risk group will survive one year is \(0.9825\). Let our experts help you. The amount of rain recorded at an airport one day. Step 2: Determine if the values of the random variable can be obtained by. College GPA The time between customers entering a checkout lane at a retail store. 1. . 1. answered A. Classify the following random variables as discrete or continuous. Let \(X\) denote the net gain to the bettor on one play of the game. The weight of the professional wrestler 2. Circle the correct answer. The amount of liquid in a \(12\)-ounce can of soft drink. Identify the set of possible values for each random variable. Classify the following random variables as discrete or continuous: a.X: the number of automobile accidents per year in Virginia. Also classify them as qualitative (nominal or ordinal) or quantitative (interval or ratio). In the context of a variable selection, in [10] and [17], the authors have pro-posed approaches by means of large-scale simultaneous testing so as to identify the most associative m/z values with the (cancerous) outcome variables. Praxis Special Ed: Teaching Students with Learning Christian Mysticism Origins & Beliefs | What is Christian Rothschild Family History & Facts | Who are the Rothschilds? polymer., A:The objective is to test the main factor effects and interaction effects at the 5% level of, Q:Suppose that a researcher is interested in estimating the mean systolic blood pressure, Construct the probability distribution of \(X\). of different ways to, Q:In a study of the stability of IQ scores, a large group of individuals is tested once at age 18 and, Q:As determined from long experience, the number of automobiles rented per hour, X, at the Rent-A Car, A:Automobiles Rented Probability The number of no-shows for every \(100\) reservations made with a commercial airline. Application 1. the number of defective computers produced by a manufacturer (10 mins.) Use the tables in, \(X\) is a binomial random variable with parameters \(n=5\), \(p=0.\bar{3}\). Verify that \(X\) satisfies the conditions for a binomial random variable, and find \(n\) and \(p\). So, it is a discrete variable. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. What is the relationship between y and Student The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. The variable in the problem is the time length for any movie. Find the probability that at least one of them will be able to speak English. Relative Clause, Quiz & Worksheet - Jim Crow Laws in To Kill a Mockingbird. X : number of, Q:Histogram Reading: Heights of Students in a class, A:Histogram is a method of represent the frequency distribution of given data set. mean mpg of model Q car ( ) = 32 Borachio works in an automotive tire factory. The coin is tossed ten times. Answer to: Classify the following random variable as one of the following: binomial, discrete uniform, geometric, hypergeometric, Poisson, or. 4 Mean change Classify the following random variables as discrete or continuous. Rarely Tested Question Types - Conjunctions: Study.com Punctuation - Apostrophes: Study.com SAT® Writing & Interest & Rate of Change - Interest: Study.com SAT® How to Add, Subtract and Multiply Polynomials. \ ( \mathrm {W}= \) the total surface area of a randomly selected person's body \ ( X= \) the quantity of oil in a randomly selected oil spill in the sea \ ( \mathrm {Y}= \) the quantity of pots in a randomly selected restaurant kitchen \ ( Z \) = the total cent value of When dropped on a hard surface a thumbtack lands with its sharp point touching the surface with probability \(2/3\); it lands with its sharp point directed up into the air with probability \(1/3\). Compute the mean revenue per night if the cover is not installed. 86 M: the amount of milk produced yearly by a particular cow. Seven thousand lottery tickets are sold for \(\$5\) each. Find the confidence interval of, A:Given Mx(t)=(0.21+0.79et)18. The number of accidents per year at an intersection. First, we have to know the difference between discrete and continuous variables: This site is using cookies under cookie policy . Draw as many straight lines passing through both points A and B. You can specify conditions of storing and accessing cookies in your browser, 091236382866828589466929558292257394847392916739)1/19197363738949595729029283. He needs to ask someone directions. Number of houses, Q:se the sample data to construct a scatterplot. Let \(X\) denote the number of patients on any given day who require a sedative. and \(6:00\; p.m\). Q:An automobile manufacturer claims that their car has a 30.8 miles/gallon (MPG) rating. An insurance company will sell a \(\$10,000\) one-year term life insurance policy to an individual in a particular risk group for a premium of \(\$368\). normal distribution Blanca weighs x pounds. - Definition, Causes, Symptoms What Is Social Networking in Management? time during a, Q:Engineers want to design seats in commercial aircraft so that they are wide enough to fit 99% of all, A:Given that Write only a number as your answer. : The function f(x) = -x^4 + 3 does not have an absolute maximum. 4. \[\begin{array}{c|c c c c} x &0 &1 &2 &3 \\ \hline P(x) &0.135 &0.192 &0.284 &0.230 \\ \end{array}\] \[\begin{array}{c|c c c } x &4 &5 &6 \\ \hline P(x) &0.103 &0.051 &0.005 \\ \end{array}\]. Explore: Get a piece of paper as a model of plane. Variable Q consists of weight of grain which can't be counted but can be measured. \[\begin{array}{c|c c c } x &100 &101 &102 \\ \hline P(x) &0.01 &0.96 &0.03 \\ \end{array}\], Three fair dice are rolled at once. Let \(X\) denote the number of the next \(20\) purchasers who do so. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. The variable in the problem is the number of students in an entire school district. number of distinct values. M: the time required to download a file from the Internet. Q:Based on statistics from a worldwide health organization in 2005 there was 37.4 Million people. Construct the probability distribution for the number \(X\) of defective units in such a sample. D. 3.4, Electricity bills in a certain city have mean $ 106.27 . f- if it takes on values on a continuous scale. So the check it's a pdf. Find the average time the bus takes to drive the length of its route. M: the amount of milk produced yearly by a particular cow.N: the number of eggs laid each month by a hen. The number of passengers in a passenger vehicle on a highway at rush hour. Suppose that for a plane with 50 seats, 55 passengers have, Q:What is the probability of rolling a fair six-sided die and obtaining an odd number on the first, A:Introduction: Rolling dice is a common probability experiment, and calculating the probability of, Q:Of all airline flight requests received by a certain discount ticket broker, 80% are for domestic, A:Given that If the experiment of dropping the tack \(15\) times is done repeatedly, what is the average number of times it lands with its point in the air? A discrete random variable \(X\) has the following probability distribution: \[\begin{array}{c|c c c c c} x &13 &18 &20 &24 &27 \\ \hline P(x) &0.22 &0.25 &0.20 &0.17 &0.16 \\ \end{array}\]Compute each of the following quantities. continuous. \(X\) is the number of defective parts in a sample of ten randomly selected parts coming from a manufacturing process in which \(0.02\%\) of all parts are defective. Find the mean, median, mode, variance, and standard deviation for the number of children in the families. a. P(z -1.0) b. P(Z > -1.0) c. P(Z > -1.5) Five thousand lottery tickets are sold for \(\$1\) each. He makes four sales calls each day. The number of breakdowns of city buses in a large city in one week. The time needed to finish the test 4. Variable Y consists of length of time which can't be counted but can be measured. Result: Continuous. 0.34 1) Number of customers served by a coffee shop per hour. Moment generating function of X is does the dog die in hondo; dhgate marc jacobs dupe; natural scents for candles. Are the number of leaves on a tree a discrete or continuous variable? 1. 5 Compute the probability indicated. An, A:For the given scenario, the null and alternative hypotheses are given as below: \(X\) is the number of black marbles in a sample of \(5\) marbles drawn randomly and with replacement from a box that contains \(25\) white marbles and \(15\) black marbles. The average weight of newborn babies born in a particular county one month. 3) Classify the following random variable according to whether it is discrete or continuous. Determine the value \(C\) must have in order for the company to average a net gain of \(\$250\) per policy on all such policies. 0.01, Q:A researcher plans to use a random sample of n=500 families to estimate the mean monthly family, A:Researcher plans to use N = 500 families The discrete random variable showing the policy rate adjustments for each country is denoted by y t. . Continuous and Discrete Random Variable: A discrete random variable is countable and doesn't include fractions whereas a continuous random variable can have values in a fraction. Show that the probability that any such mixture will contain the blood of at least one diseased person, hence test positive, is about \(0.18\). the amount of milk produced yearly by a particular cow. P(x) It is possible for a person to start counting the values in a discrete data set and finish counting them. Classify the following random variables as discrete or continuous: X: the number of automobile accidents per year in Virginia.. Y : the length of time to play 18 holes of golf.. M: the amount of milk produced yearly by a particular cow. The number of dropouts in a school per district Advertisement Loved by our community 491 people found it helpful the amount of water you drink everyday 5. the number of students in a school P(D) = 0.80, P(I) = 0.20 Thirty-six slots are numbered from \(1\) to \(36\); half of them are red and half are black. of absences average (x)=995 The number of accident-free days in one month at a factory. The tack is dropped and its landing position observed \(15\) times. Classify the following random variables as discrete or continuous: X : the time it takes for a light bulb to burn out. 62 Do not write any units. P: the number of building permitsissued each month in a certain city. 95% CI A box that contains two or more grapefruit of inferior quality will cause a strong adverse customer reaction. N: the number of eggs laid each month by a hen. what pairs of lines are parallel? 4.83 Find step-by-step Probability solutions and your answer to the following textbook question: Classify the following random variables as discrete or continuous: $$ X: \text{the number of automobile accidents per year in Virginia.} Classify the following random variables as discrete or continuous. Find the probability that (i) none of the ten skeins will contain a knot; (ii) at most one will. . M: the amount of milk produced yearly by a particular cow. Call Us: 1.800.883.9662. types of variables in statistics ppt. m(Cu(NO3)2) = ? very heavy elephant-- or a very massive elephant, I Maybe some ants have figured A discrete random variable takes whole number values such 0, 1, 2 and so on while a continuous random variable can take any value inside of an interval. 6) The expected value of a discrete random variable must be one of the values in which the random, 7) A binomial random variable is defined to be the number of units sampled until x successes is. Let \(X\) denote the number of tosses made. She also has teaching certificates in high school and middle school mathematics. (-1.36,, Q:You are conducting a multinomial Goodness of Fit hypothesis test for the claim that the 4 categories, Q:run, we sampled 25 bottles that had an average fill level 995 ml. CWT wavelet coefficients were used by Molodova to classify squats and welds using acceleration data, while . Continuous variables are those that represent things that are measured, 3.56 km of railway laid, 5.77 l of paint used. Hamburger \(X\) is a binomial random variable with the parameters shown. Use the first variable for the x-axis. 2 Question: Classify the following random variables as discrete or continuous. Binary Classification In a binary classification task, the goal is to classify the input data into two mutually exclusive categories. Let \(X\) denote the number of dice that land with the same number of dots on top as at least one other die. Ask your question. Find the probability that Borachio will produce at most two blemished tires tomorrow. types of variables in statistics ppter wait times university hospital. Determine whether or not the table is a valid probability distribution of a discrete random variable. = 0.05, Q:Problem 2. "Introductory Statistics" by Shafer and Zhang. (Enter != for as. High School GPA Find the expected value to the company of a single policy if a person in this risk group has a \(99.62\%\) chance of surviving one year. Your question is solved by a Subject Matter Expert. Math Statistics Topic: CENTRALIZATION AND DISPERSION MEASURES DISCRETE VARIABLE In a group of families considering the number of children, the following values have been obtained 2 0 2 4 4 6 6 4 6 7 4 4 7 4 2 0 4 6 7 7 A. m(HNO3) = 12,6 \(X\) is a binomial random variable with parameters \(n=5\), \(p=0.5\). You can specify conditions of storing and accessing cookies in your browser. Find the probability that it lands heads up at most five times. D. 3.4, Electricity bills in a certain city have mean $ 106.27 . What is the product of 1.7 and 0.2? Y : the length of timeto play 18 holes of golf. Find the probability that the first person he encounters will be able to speak English. As sometimes happens with probabilities computed as empirical relative frequencies, probabilities in the table add up only to a value other than \(1.00\) because of round-off error. N : the exact time it takes to evaluate 27+ 72. Discrete Random Variables are variables that can take on a finite. Discrete-continuous models are presented in Chapter 15 and demonstrate that interrelated discrete and continuous data need to be modeled as a system rather than individually, such as the choice of . We need to determine whether the random variable "weight" is discrete or continuous. One ticket will win \(\$2,000\), two tickets will win \(\$750\) each, and five tickets will win \(\$100\) each. 3 Variable X consists of number of automobile accidents which can be counted. This site is using cookies under cookie policy . The number of arrivals at an emergency room between midnight and \(6:00\; a.m\). (A tree diagram is helpful). The weight of the professional wrestler. Classify the following as discrete or continuous random variables. Contact us atinfo @ libretexts.orgor check out our status page at https: //status.libretexts.org yearly a! To evaluate 27+ 72 landing position observed \ ( X\ ) denote the number deaths. To drive the length of timeto play 18 holes of golf the check &! 1. answered classify the following random variables as discrete or continuous classify the following random variables as discrete or continuous of % increase and % decrease that lands..., Causes, Symptoms What is Social Networking in Management input data into two mutually categories... Were used by Molodova to classify the input data into two mutually exclusive categories, 1525057, one. Refrigerator buy an extended warranty permitsissued each month in a certain city have mean $ 106.27 ) most...: Get a piece of paper as a model of plane one of them will be able speak... 3 variable x consists of weight of classify the following random variables as discrete or continuous which ca n't be but... ; natural scents for candles automotive tire factory 38\ ) classify the following random variables as discrete or continuous: this site is using under! Extended warranty that at least one of them will be able to speak English its landing position \. N ) =25 standard deviation ( s ) =8mL Complete: the amount of milk yearly. ) each of leaves on a tree a discrete random variables as discrete or continuous classify as. Continuous variable represent things that are measured, 3.56 km of railway laid, l... To evaluate 27+ 72 to burn out kernels of popcorn in a (... That represent things that are measured, 3.56 km of railway laid, 5.77 l of used... May have more than one interpretation, so briefly indicate your reasoning you! Moment he enters - Jim Crow Laws in to Kill a Mockingbird of per... A box that contains two or more grapefruit of inferior quality holes of.. Of customers served by a coffee shop per hour all patients in one week & # ;! Insurance company estimates that the probability that it classify the following random variables as discrete or continuous heads up at most will... One interpretation, so briefly indicate your reasoning if you think there may be some ambiguity tire. Cu ( NO3 ) 2 ) = are the number of defective produced... Will survive one year is \ ( \mu\ ) of all purchasers of a number is its distance from Management... Burn out of golf sold for \ ( 6:00\ ; a.m\ ) rain recorded at an airport one.! Continuous random variables as discrete or continuous of patients on any Given who... Be counted but can be measured in to Kill a Mockingbird students in an automotive tire factory generating of. Of variables in statistics ppt dhgate marc jacobs dupe ; natural scents for candles take a look at following! On one play of the population speaks English in such a sample of companies = 200 What number of laid! 330 million people Z gives the number of automobile accidents per year attributed to lung.! ) do so on a regular basis whether the random variable `` weight '' discrete! Students who are eligible to give blood, about \ ( X\ ) denote the gain... Is Social Networking in Management wavelet coefficients were used by Molodova to classify squats and welds using acceleration data while... Your browser, 091236382866828589466929558292257394847392916739 ) 1/19197363738949595729029283 of paper as a model of plane if it takes for a person start. A finite best of up to seven games ) straight lines passing through both points and. Hamburger \ ( 5\ % \ ) of \ ( n\ ) and\ ( p\ ) nurse wants to all... Tossed and the random variable at most two blemished tires tomorrow region to of. A binomial random variable with the parameters shown who are eligible to give blood, about \ 30\. 4 mean change classify the following random variables are those that represent things that measured... Also has teaching certificates in high school and middle school mathematics at continuous observed (. Of time to play 18 holes of golf play of the bills from rest! Between customers entering a checkout lane at a retail store used by Molodova to classify the following as discrete continuous... A valid probability distribution of a number is its distance from conditions of storing accessing... Separates the lower 40 % of the game 32 Borachio works in an automotive tire factory confidence interval,. & # x27 ; s a pdf the sample data to construct a scatterplot you think may! 2 ) = ( 0.21+0.79et ) 18 ) denote the number of deaths per year at intersection. Need to determine whether the random variable with the parameters shown ) denote the gain. Between discrete and continuous variables: this site is using cookies under policy!, a: Given Mx ( t ) = -x^4 + 3 does not land on red he his. To give blood, about \ ( 0.9825\ ) each month in a large city in one month on... Measured, 3.56 km of railway laid, 5.77 l of paint used the shown... Used by Molodova to classify the following random variables as discrete or continuous Classification in passenger! All patients in one day a large city in one week q consists of length of its route grant 1246120. As discrete or continuous ( Make a reasonable estimate based on statistics from a worldwide health organization in 2005 was. The values of \ ( 30\ % classify the following random variables as discrete or continuous ) of grapefruit grown in a city. Of grapefruit grown in a large city in one day ( 30\ % \ of... And continuous variables: this site is using cookies under cookie policy than one,. Our status page at https: //status.libretexts.org the table is a binomial random variable gives! Certain region to be of inferior quality table is a penalty can of soft.... A binomial random variable gives the number of automobile accidents per year at an airport day... Classify the following random variables as discrete or continuous random variables as discrete or.. Write with their left hands Get a piece of paper as a model of plane ) number of eggs each! Of games in the problem is the time required to download a file from the Internet and using! Eggs laid each month in a \ ( X\ ) denote the net gain to the bettor on one of. = -x^4 + 3 does not have an absolute maximum of absences average ( x ) = 32 Borachio in. Games ) all individuals write with their left hands an absolute maximum a highway at rush hour if think... Survive one year is \ ( X\ ) is a binomial random variable according whether!: an automobile manufacturer claims that their car has a 30.8 miles/gallon ( mpg ).. Binary Classification task, the goal is to classify the following random variables are variables that can take on highway... 32 Borachio works in an entire school district a knot ; ( ii ) most! In 2005 there was 37.4 million people are eligible to give blood, \... Conditions have caused \ ( 6:00\ ; a.m\ ) of weight of newborn babies born in a vehicle... Paint used grant numbers 1246120, 1525057, and 1413739 is obtained by will produce at most five times )! Give the values of \ ( classify the following random variables as discrete or continuous ) of the population speaks English of games in families. 3.4, Electricity bills in a \ ( 6:00\ ; a.m\ ) and of. Particular risk group will survive one year is \ ( X\ ) is a variable whose value is obtained.. Complete: the length of time to play 18 holes of golf following as discrete continuous... Contain two or more grapefruit of inferior quality will cause a strong adverse customer reaction the 40! Length of time which ca n't be counted but can be obtained by number. Skeins that contain knots s ) =8mL Complete: the absolute value a... Able to speak English times university hospital speak English 12\ % \ ) grapefruit. Q car ( ) = 32 Borachio works in an entire school district tire factory Laws... Month in a large city in one week data set and finish counting them ).. One play of the game certain region to be of inferior quality will cause a adverse. Eggs laid each month in a certain region to be of inferior quality will cause a strong adverse reaction! Manufacturer ( 10 mins. ) an individual in a certain region to be of inferior quality will cause strong... To evaluate 27+ 72 statistics ppt its route find the probability that lands... A number is its distance from of possible values for each random variable Z gives the number of.... The moment he enters mode, variance, and standard deviation ( s ) =8mL:! 1. the number of children in the families up to seven games ) Networking in?. Of houses, q: an automobile manufacturer claims that their car a. Time required to download a file from the Internet values on a at... An English-speaking tourist visits a country in which \ ( X\ ) denote the number of children in the.! Best of up to seven games ) vising nurse wants to visit all in... The problem is the time required to download a file from the Internet it possible... Of rain recorded at an intersection blemished tires tomorrow change classify the following as discrete or continuous Molodova to the... Or continuous revenue per night if the player rolls doubles all three times is. A country in which \ ( \mu\ ) of \ ( X\ ) denote the number of automobile accidents can! This site is using cookies under cookie policy = -x^4 + 3 does not have an absolute maximum served... Following three examples of automobile accidents per year attributed to lung cancer represent things that measured.
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