(Solution Library) A graduate student wanted to do a study on drug abuse on a particular campus. It turned out that 1 in 5 people she approached refused


Question: A graduate student wanted to do a study on drug abuse on a particular campus. It turned out that 1 in 5 people she approached refused to answer any questions on the subject.

  1. If 15 people were approached and asked to answer questions, what is the probability that exactly 10 of them would answer the researcher's questions?
  2. In a sample of 10 people, what is the probability that at least one refuses to answer?
  3. In a sample of 20 people, how many would you expect to answer the graduate student's questions?

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Solution: The downloadable solution consists of 1 pages
Deliverable: Word Document

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