Question: A result from an internet survey among Facebook users was that the average adult user of Facebook has 338 friends. This population distribution takes only integer values, so it is certainly not Normal. It is also highly skewed to the right with a reported median of 200 friends. Suppose that and you take an SRS of 80adult Facebook users.

1. For your sample, what are the mean and standard deviation of , the mean number of friends per adult user?
2. Use the central limit theorem to find the probability that the average number of friends for 80 Facebook users is greater than 350.
3. What are the mean and standard deviation of the total number of friends in your sample?
4. What is the probability that the total number of friends among your sample is greater than 28.000?

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