Suppose that the number of Facebook friends users have is normally distributed with a mean of 146 and a standard deviation of about 44. Assume forty-seven individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. a. What is the distribution of ? - N( 146 44 b. For the group of 47, find the probability that the average number of friends is more than 154. c. Find the third quartile for the average number of Facebook friends. Round to 2 decimal places. d. For part b), is the assumption that the distribution is normal necessary? O YesO No Question Help: Written Example > Next Question

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