The variance of randomvariable of x then var(x) = E[x-E[x]2 = E[________]?

Related Mcqs:

The number of defective bulbs in a lot is example of ____________?

A. Continuous variable B. Discrete variable C. Function D. None of these...

If a & b are constants, then Var (a + bX) equal to_________________?

A. Var(bX) + a B. b2 Var(X) C. b Var(x) D. None of these...

The probability function is always______________?

A. Negative B. Non Negative C. Positive D. None...

Random numbers are also called__________________?

A. Random experiment B. random Errors C. Random digits D. None of these...

A random variable is that whose value is determined by the outcome of _________________?

A. Trial B. event C. Experiment D. Random experiment...