Best MCQs Random Variable Quiz 3

The post is about Random Variable Quiz. There are 20 multiple-choice questions covering topics related to the basics of random variables, types of random variables, dependent and independent random variables, distribution of random variables, and mean and variance of random variables. Let us start with MCQs Random Variable Quiz.

Online MCQs about Random Variables with Answers

1. The probability that a continuous random variable assumes a single value is

 
 
 
 

2. $Var(2X+5) =$ ?

 
 
 
 

3. If $X$ is a random varaible, then $Var(2-3X)$ is

 
 
 
 

4. If $X$ is a random variables, $a$ and $b$ are constants then $E(aX+b)$ is equal to

 
 
 
 

5. If $X\sim N(\mu, \sigma^2)$ where $a$ and $b$ are real numbers, then variance of $(aX+b)$ is

 
 
 
 

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

 
 
 
 

7. If $X$ and $Y$ are independent then $Var(X-Y)$ is

 
 
 
 

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

 
 
 
 

9. If $X$ follows t-distribution with $v$ degrees of freedom then the distribution of $x^2$ is

 
 
 
 

10. For a continuous random variable $X$, the total probability of the mutually exclusive events (intervals) within which $X$ can assume a value is

 
 
 
 

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

 
 
 
 

12. $Var(X/3)=$?

 
 
 
 

13. If $SD(X) = 3$ then $SD(X+4/6)$ is

 
 
 
 

14. If $X$ and $Y$ are independent random variables then $VAR(X-Y)$ is equal to

 
 
 
 

15. The distribution function $F(x)$ is equal to

 
 
 
 

16. If $Var(X) = 4$ then $Var(3X+5)$ is equal to

 
 
 
 

17. For a normal distribution, the $Z$ value for an $X$ value is to the right of the mean is always

 
 
 
 

18. $Var(3X – 4Y)=$?

 
 
 
 

19. For a continuous random variable, the area under the probability distribution curve between any two points is always

 
 
 
 

20. $Var(X+4)=$?

 
 
 
 

MCQs Random Variable Quiz

MCQs Random Variable Quiz with Answers
  • If $X$ and $Y$ are independent random variables then $E(XY)$ is equal to
  • If $X$ and $Y$ are independent random variables then $VAR(X-Y)$ is equal to
  • If $X$ is a random variables, $a$ and $b$ are constants then $E(aX+b)$ is equal to
  • If $X$ is a random varaible, then $Var(2-3X)$ is
  • $Var(2X+5) =$ ?
  • $Var(X+4)=$?
  • $Var(X/3)=$?
  • If $Var(X) = 4$ then $Var(3X+5)$ is equal to
  • If $SD(X) = 3$ then $SD(X+4/6)$ is
  • If $X$ and $Y$ are independent then $Var(X-Y)$ is
  • $Var(3X – 4Y)=$?
  • A continuous random variable is a random variable that can
  • For a continuous random variable, the area under the probability distribution curve between any two points is always
  • The probability that a continuous random variable assumes a single value is
  • For a continuous random variable $X$, the total probability of the mutually exclusive events (intervals) within which $X$ can assume a value is
  • If $X\sim N(\mu, \sigma^2)$ where $a$ and $b$ are real numbers, then variance of $(aX+b)$ is
  • For a normal distribution, the $Z$ value for an $X$ value is to the right of the mean is always
  • If $X$ follows t-distribution with $v$ degrees of freedom then the distribution of $x^2$ is
  • The distribution function $F(x)$ is equal to
  • If $X$ is a continuous random variable, then function $f(x)$ is
Statistics Help, mcqs random variables quiz

https://rfaqs.com, https://gmstat.com

Leave a Comment

Discover more from Statistics for Data Analyst

Subscribe now to keep reading and get access to the full archive.

Continue reading