Question

What type of shopping websites do males aged 18 to 34 visit? About 50% of male Internet users in this age group visit an auction site (such as eBay) at least once a month.

(a) If we interview a random sample of 13 male Internet users aged 18 to 34, what is the probability that exactly 8 of the 13 have visited an auction site in the past month? (Round your answer to four decimal places.)


(b) Suppose that we had interviewed a random sample of 700 men aged 18 to 34. What is the probability that at least 333 of the men in the sample visit an online auction site at least once a month? (Round your answer to four decimal places.)

Answer 1