The distribution for the time it takes a student to

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1. Suppose 2 batteries are randomly chosen from a bin containing 10 batteries, of which 7 are good and 3 are defective. Let x denote the number of defective batteries chosen.

a. List all of the possible values of x

b. Set up the probability distribution

c. Find the mean, and the standard deviation

2. The distribution for the time it takes a student to complete the fall class registration has a mean of 94 minutes and a standard deviation of 10 minutes. For a random sample of 80 students, determine the mean and standard deviation of the sample mean. What can you say about the sampling distribution of the sample mean and why?

Reference no: EM13613260

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