# MCQs Random Variables 5

1. For a random variable $X$, $E(X)$ is

2. A variable whose value is determined by the outcome of a random experiment is called

3. When four coins are tossed, the value of a random variable (Numbers of head) is

4. If $X$ and $Y$ are random variable then $E(X + Y)$ is equal to

5. If $X$ is a random variable that can take only non-negative values, then

6. A variable (Random Variable) assuming a finite number of values is called

7. A continuous variable is a variable that can assume

8. Two random variables $X$ and $Y$ are said to be independent if:

9. If $X$ is a discrete random variable, the function $f(X)$ is

10. If $X$ is a continuous random variable, then function $f(X)$ is

11. If $C$ is a non-random variable, the $E(C)$ is

12. A variable (Random Variable) assuming an infinite number of values is called

13. If $X$ and $Y$ are independent random variables then $E(XY)$ is equal to

14. If $X$ and $Y$ are two independent variables, then

15. A continuous random variable is a random variable that can 