Homework Help: Statistics

Posted by Steven on Monday, February 11, 2013 at 1:15am.

Each of 4 people is presented with gourmet coffee and ordinary coffee and asked to identify the gourmet coffee. None of the 4 can really tell the difference and are merely guessing.

a.What is the probability that exactly 2 of the 4 correctly identify the gourmet coffee?

b.What is the probability that at least 2 of the 4 correctly identify the gourmet coffee?

c.What is the probability that at most 1 out of the 4 correctly identify the gourmet coffee?

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