Important MCQ Random Variables 1

 The post is about MCQ Random Variables. There are 20 multiple-choice questions related to random experiments, random variables and types of random variables, expectations, discrete random variables, and continuous random variables. Let us start with the MCQ Random Variables Quiz.

Online MCQs about Random Variable with Answers

1. Which of the following statements accurately describes a key difference between discrete and continuous random variables?

 
 
 
 

2. Which of the following are examples of discrete random variables?

 
 
 
 

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

 
 
 
 

4. Which of the following statements describes continuous random variables?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 
 

10. If $X$ is a random variable and $a$ and $b$ are constants then $Var(aX+ b)$ is equal to

 
 
 
 

11. A continuous variable is a variable that can assume

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 
 

20. A _____ random variable has a countable number of possible values.

 
 
 
 

MCQ Random Variables Quiz

MCQ Random Variables Quiz
  •  If $X$ is a continuous random variable, then function $f(X)$ is
  • A variable (Random Variable) assuming an infinite number of values is called
  • A variable whose value is determined by the outcome of a random experiment is called
  • If $X$ and $Y$ are random variable then $E(X + Y)$ is equal to
  • If $X$ is a discrete random variable, the function $f(X)$ is
  • When four coins are tossed, the value of a random variable (Numbers of head) is
  • A variable (Random Variable) assuming a finite number of values is called
  • If $X$ and $Y$ are independent random variables then $E(XY)$ is equal to
  • Two random variables $X$ and $Y$ are said to be independent if:
  • If $X$ and $Y$ are two independent variables, then
  • A continuous random variable is a random variable that can
  • If $X$ is a random variable that can take only non-negative values, then
  • For a random variable $X$, $E(X)$ is
  • If $C$ is a non-random variable, the $E(C)$ is
  • A continuous variable is a variable that can assume
  • A ———– random variable has a countable number of possible values.
  • Which of the following statements accurately describes a key difference between discrete and continuous random variables?
  • Which of the following are examples of discrete random variables?
  • Which of the following statements describes continuous random variables?
  • If $X$ is a random variable and $a$ and $b$ are constants then $Var(aX+ b)$ is equal to
MCQ Random Variables

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