According to the American Marketing Association, in December 2015 20% of Facebook users were between 25 and

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According to the American Marketing Association, in December 2015 20% of Facebook users were between 25 and 34 years old. If a random sample of nine adults was selected.

a. What is the probability that exactly two adults from this sample were between 25 and 34 years old?

b. What is the probability that fewer than four adults from this sample were between 25 and 34 years old?

c. What is the probability that five or more adults from this sample were between 25 and 34 years old?

d. What are the mean and standard deviation for this distribution?

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Business Statistics

ISBN: 9780134685267

3rd Edition

Authors: Robert A. Donnelly

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Question Posted: Nov 05, 2019 04:17 AM

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According to the American Marketing Association, in December 2015 20% of Facebook users were between 25 and

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a b Px 4 01342 03020 03020 017...View the full answer

Business Statistics

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