Suppose that the average number of Facebook friends users have is normally distributed with a mean of 115 and a standard deviation of about 42. Assume forty-five individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. a. What is the distribution of ? - N115 ✓ 6.2609) 0³ 0³ b. For the group of 45, find the probability that the average number of friends is more than 108. 0467 X O 0.8682 c. Find the first quartile for the average number of Facebook friends.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Average number of Facebook friends I mean of 115 and a standard deviation of 4245 individuals are randomly chosen find the first quartile for the average number of Facebook friends
Suppose that the average number of Facebook friends users have is normally distributed with a mean of 115
and a standard deviation of about 42. Assume forty-five individuals are randomly chosen. Answer the following
questions. Round all answers to 4 decimal places where possible.
a. What is the distribution of ? - N115
b. For the group of 45, find the probability that the average number of friends is more than 108. 0467 X
O 0.8682
6.2609✔
c. Find the first quartile for the average number of Facebook friends.
Transcribed Image Text:Suppose that the average number of Facebook friends users have is normally distributed with a mean of 115 and a standard deviation of about 42. Assume forty-five individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. a. What is the distribution of ? - N115 b. For the group of 45, find the probability that the average number of friends is more than 108. 0467 X O 0.8682 6.2609✔ c. Find the first quartile for the average number of Facebook friends.
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