Var (kY)= ____________?

Related Mcqs:

1. 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...

2. For two independent random variables X & Y, Var (x ± y)=___________?

   A. Var(X) + Var (Y) B. Var(X) – Var (Y) C. Var (X)± D. Zero...

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

   A. (X – A)2 B. E(x) C. (x – u)2 D. (x – 4)2...

4. If a and b are two constants, then Var(a+bX) is_______________?

   A. a±bVar(X) B. Var(a)±Var(X) C. ±bVar(X) D. b2Var(X) E. (a±b)Var(X)...

5. Var(2X+3) is________________?

   A. 5 Var(X) B. 4 Var(X) C. 4 Var(X)+3 D. 5 Var(X)+3...

6. if Var(θˆ)→0 as n → 0, then θˆ is said to be______________?

   A. Sufficient B. Efficient C. Unbiased D. Consistent...

7. if Var(T2)_______________?

   A. Efficient B. Sufficient C. Unbiased D. Consistent...

8. A random variable is ____________ ?

   A. Not a function B. A continuous variable C. A function D. None of these...

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

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

10. Random numbers are used for selection of ____________?

    A. Random space B. Space C. Random sample D. Non of these...