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AP EAMCET202317 May 2023Morning ShiftMathematicsProbabilityActual

If the mean and variance of a binomial variable X are 2.4 and 1.44 respectively, then the parameters n and p are respectively

Options

  1. A6, 2 5
  2. B4, 3 5
  3. C6, 3 5
  4. D8, 1 3

Correct answer

A. 6, 2 5

Step-by-step solution

aligned & Mean =2.4 n p=2.4 & Variance =1.44 n p(1-p)=1.44 & 2.4(1-p)=1.44 p= 2 5 & and n p=2.4 n=2.4 5 2 =6.0 aligned

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