Answer to Question #262246 in Other for Ali

Question

According to a Harris Interactive poll, 52% of American college graduates have Facebook accounts

(http://www.harrisinteractive.com/harris_poll/pubs/Harris_Poll_2009_04_16.pdf). Suppose that this result

is true for the current population of American college graduates.

a. Let x be a binomial random variable that denotes the number of American college graduates in

a random sample of 15 who have Facebook accounts. What are the possible values that x can

assume?

b. Find the probability that exactly 9 American college graduates in a sample of 15 have Facebook

accounts.

Answer 1

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