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Probability Distributions

Questions about statistics (please see attached).

1. The graph shows the results of a survey of drivers who were asked to name the most annoying habit of other drivers. You randomly select six people who participated in the survey and ask each one of them to name the most annoying habit of other drivers. Let x represent the number who named talking on cell phones as the most annoying habit. Compute parts (a) through (c)
a) construct a binomial distribution
Find the probability of each value of x to construct the binomial distribution.
b) Find the probability that exactly two people will name " talking on cell phones"

2. 46% of adults say cashews are their favorite kind of nut. You randomly select 12 adults and ask each to name his or her favorite nut. Find the probability that the number who say cashews are their favorite nut is (a) exactly three, (b) at least four, and (c) at most two.
6. A company gave psychological tests to prospective employees. The random variable x represents the possible test scores. Use the histogram to find the probabilities in parts (a) and (b).


Solution Summary

The solution of several statistical problems in the area of probability distributions are discussed in this solution.