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AP EAMCET201824 Apr 2018Evening ShiftMathematicsProbabilityActual

If the probability function of a random variable X is given by P(X=j)= 1 2^j ; j=1,2,3, , then the variance of

Options

  1. A2
  2. B3
  3. C4
  4. D5

Correct answer

A. 2

Step-by-step solution

No solution. Refer to answer key.

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