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AP EAMCET201822 Apr 2018Evening ShiftMathematicsStatisticsActual

The variance of the following distribution is

Options

  1. A2
  2. B4
  3. C6
  4. D8

Correct answer

B. 4

Step-by-step solution

Variance = f x^2 f - ( f x f )^2=20-16=4

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