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AP EAMCET201724 Apr 2017Morning ShiftMathematicsProbabilityActual

If X is a random variable with the following probability distribution array |l|c|c|c| X =x & -3 & 6 & 9 P ( X =x) & 1 6 & 1 2 & 1 3 array then the variance of X is

Options

  1. A65 4
  2. B65 2
  3. C65 3
  4. D65

Correct answer

A. 65 4

Step-by-step solution

No solution. Refer to answer key.

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