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MHT CET2011MathematicsProbability

If x follows the Binomial distribution with parameters n=6 and p and 9 P(X=4)=P(X=2) , then p is

Options

  1. A1 / 4
  2. B1 / 3
  3. C1 / 2
  4. D2 / 3

Correct answer

A. 1 / 4

Step-by-step solution

Given, 9 P(X=4)=P(X=2) 9 6 4 p⁴(1-p)²= 6 2 p²(1-p)⁴ (1-p)² p² =9 1-p p =3 p=1 / 4

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