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MHT CET202014 Oct 2020Morning ShiftMathematicsStatisticsActual

A die is thrown 100 times, then the standard deviation of getting an even number is

Options

  1. A10
  2. B5
  3. C20
  4. D15

Correct answer

B. 5

Step-by-step solution

Let x denote the number of succeses in 100 Then x follows binomial distribution with n=1008p=y₂, q= 1 2 variance of x=n p q=100 1 2 1 2 =25 array l Standard Deviation array = vatiance = 25 =5

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