7 Suppose that the probability that any child of alcoholic parents becomes alcoh

Question

7 Suppose that the probability that any child of alcoholic parents becomes alcoholic isp = 16. Assuming independent outcomes, the probability that two children of alcoholic rents will be alcoholic A)L16 B).32 8. The distribution of probabilities for each outcome of a random variable that sums to 1.0 is called a A)lrandom variable B)lprobability distribution itional bili 9. A professor records the grades for his class of students. He finds that the probability than astudent earns an Ais p = .14; earns a B isp=36; earns a C isp=32; earns a D isp= 10; and earns an F isp-08. What is the probability that a student earns a B or better in this class? B).14 10. Each of the following is an example of a binomial distribution, ex A) the number of heads in ten flips of a fair coin B) the number of males and females in a sample the number of votes for or against a candidate D) the time it takes to a driving test 11.The mean ofa ility distribution is calledt value of the mean B) mathematical ex A and B e of the above 12. The sample space is equal to the total number of random outcomes possible for a randos riable A) True B) False 13. The probability of an outcome is particularly useful for predicting the likelihood of fixe A) True B) False

Explanation / Answer

Solution:-

7) option D) 0.03 {0.025 rounded to .03(use multiplicative rule)}

8) option B) probability distribution

=> A discrete probability distribution is a probability distribution characterized by a probability mass function. Thus, the distribution of a random variable X is discrete, and X is called a discrete random variable.

9) option D. .50

=> p(A)+p(B)= .50 that a student earns a B or better in this class

10) option  D. the time it takes to complete a driving test

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