Find probabilities that exactly two of three events occur
Supposed that A, B, and C are mutually independent events and that P(A)=0.5, P(B)=0.8, and P(C)=0.9. Find the probabilities that exactly two of the three events occur.
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A hat contains n coins, f of which are fair, and b of which are biased to land heads with probability 2/3. A coin is drawn from the hat and tossed twice. The first time it lands heads, and the second time it lands tails. Given this information, wh
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A sample of 8 is to be picked from the box. In how many ways can a sample be selected so that at least 5 of the balls are red?
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