Suppose that the average number of Facebook friends users have is normally distributed with a mean of 119 and a standard deviation of about 48. Assume forty-three individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. What is the distribution of ¯xx¯? ¯xx¯ ~ N(,) For the group of 43, find the probability that the average number of friends is less than 112. Find the third quartile for the average number of Facebook friends.

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Q: Assume that the readings on the thermometers are normally distributed with a mean of 0°and standard…

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