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# Chapter 5 - Question 1 2 out of 2 points The number of...

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Question 1 2 out of 2 points The number of customers that enter a store during one day is an example of Answer Selected Answer: a discrete random variable Question 2 2 out of 2 points Exhibit 5-6 Probability Distribution x f(x) 10 .2 20 .3 30 .4 40 .1 Refer to Exhibit 5-6. The variance of x equals Answer Selected Answer: 84 Question 3

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2 out of 2 points The expected value for a binomial probability distribution is Answer Selected Answer: E(x) = np Question 4 2 out of 2 points Which of the following is not a characteristic of an experiment where the binomial probability distribution is applicable? Answer Selected Answer: the trials are dependent Question 5 2 out of 2 points Exhibit 5-11 The random variable x is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the probability of an occurrence is the same in any two time periods of an equal length. It is known that the mean number of occurrences in ten minutes is 5.3. Refer to Exhibit 5-11. The probability that there are 8 occurrences in ten minutes is Answer Selected Answer: .0771 Question 6 2 out of 2 points Exhibit 5-3 The probability distribution for the number of goals the Lions soccer team makes per game is given below.
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Chapter 5 - Question 1 2 out of 2 points The number of...

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