Suppose that the average number of Facebook friends users have is normally distributed with a mean of 130 and a standard deviation of about 59. Assume seventeen individuals are randomly chosen. Answer...

Suppose that the average number of Facebook friends users have is normally distributed with a mean of 130 and a standard deviation of about 59. Assume seventeen individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible.

1. What is the distribution of ¯x? x¯ ~ N


2. For the group of 17, find the probability that the average number of friends is more than 127.


3. Find the third quartile for the average number of Facebook friends.