Suppose that the average number of Facebook friends users have is normally distributed with a mean of 113 and a standard deviation of about 43. Assume forty individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. a. What is the distribution ofx? ¤ ~ N( b. For the group of 40, find the probability that the average number of friends is more than 119. c. Find the first quartile for the average number of Facebook friends. d. For part b), is the assumption that the distribution is normal necessary? Yes O No
Suppose that the average number of Facebook friends users have is normally distributed with a mean of 113 and a standard deviation of about 43. Assume forty individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. a. What is the distribution ofx? ¤ ~ N( b. For the group of 40, find the probability that the average number of friends is more than 119. c. Find the first quartile for the average number of Facebook friends. d. For part b), is the assumption that the distribution is normal necessary? Yes O No
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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