In a Binomial distribution, the mean is three times its variance. What is the probability of exactly 3 successes out of 5 trials?

In a Binomial distribution, the mean is three times its variance. What

1.	In a Binomial distribution, the mean is three times its variance. What is the probability of exactly 3 successes out of 5 trials?
A.	80/243
B.	40/243
C.	20/243
D.	10/243
Answer» B. 40/243

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In a Binomial distribution, the mean is three times its variance. What is the probability of exactly 3 successes out of 5 trials?

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