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Mean and variance of a binomial variate X are 4 and 2 respectively Then `P (X =1 )= ……`

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Mean and variance of a binomial variate X are 4 and 2 respectively Then `P (X =1 )= ……`
A. `(1)/(32)`
B. `(1)/(16)`
C. `(1)/(8)`
D. `(1)/(4)`
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Correct Answer - A
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