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The mean and standard deviation of a binomial variate X are 3 and 2 respectively. Then P (X ≥ 1)

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a

1−(23)9

b

1−(34)16

c

1−(23)16

d

1−(13)16

answer is A.

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Detailed Solution

μ=3, npq=2 p(X≥1)= 1−P(X=0)= 1−(23)9

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