Question: The following table provides a probability distribution for the random variable x . X f(x) 3 .25 6 .50 9 .25 Compute E ( x

The following table provides a probability distribution for the random variablex.

X f(x)

3 .25

6 .50

9 .25

  1. ComputeE(x), the expected value ofx.
  4. Compute 2, the variance ofx(to 1 decimal).
  7. Compute , the standard deviation ofx(to 2 decimals).

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