The mean and the variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is [AIEEE 2004]

The mean and the variance of a binomial distribution are 4 and 2 respe

1.	The mean and the variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is [AIEEE 2004]
A.	\[\frac{28}{256}\]
B.	\[\frac{219}{256}\]
C.	\[\frac{128}{256}\]
D.	\[\frac{37}{256}\]
Answer» B. \[\frac{219}{256}\]

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The mean and the variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is [AIEEE 2004]

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