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AP EAMCET2002MathematicsProbability

In a binomial distribution the probability of getting success is 1 4 and the standard deviation is 3 . Then, its mean is

Options

  1. A6
  2. B8
  3. C10
  4. D12

Correct answer

D. 12

Step-by-step solution

Given that aligned p= 1 4 and q=1- 1 4 & = 3 4 SD =3 n p q & =3 n p q & =9 n 1 4 3 4 & =9 n & =48 Mean =n p=48 1 4 & =12 aligned

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