Important MCQs Probability Questions 1

The post contains MCQs Probability Questions with Answers. There are 20 multiple-choice questions covering topics related to the statistical experiment, basics of probability, sample space, addition rule of probability, multiplication rule of probability, and conditional probability. Let us start with MCQs Probability Questions.

Online MCQs about Probability with Answers

1. If $A$ and $B$ are independent events with $P(A)=0.4$ and $P(B)=0.25$, then $P(A \cup B)=$?

 
 
 
 

2. In a statistical experiment, each time the experiment is repeated

 
 
 
 

3. If $A$ and $B$ are independent events with $P(A)=0.6$ and $P(B)=0.6$, then $P(A \cap B)=$?

 
 
 
 

4. The set of all possible outcomes (sample points) is called

 
 
 
 

5. If two events $A$ and $B$ are mutually exclusive events, then

 
 
 
 

6. The probability of an intersection of two events is computed by using the

 
 
 
 

7. The range of probability is

 
 
 
 

8. On a December day, the probability of snow is 0.30. The probability of a “cold” day is 0.50. The probability of snow and a “cold” is 0.15. Do snow and “cold” weather are independent events?

 
 
 
 

9. The sample space (experimental outcomes) refers to

 
 
 
 

10. If events $A$ and $B$ are independent events with $P(A)=0.1$ and $P(B)=0.4$, then

 
 
 
 

11. Events $A$ and $B$ are mutually exclusive. Which of the following statements is true?

 
 
 
 

12. If $P(A|B)=0.3$

 
 
 
 

13. If $P(A|B)=0.3$ and $P(B)=0.8$, then

 
 
 
 

14. An experiment that consists of tossing 4 coins successively. The number of sample points in this experiment is

 
 
 
 

15. If $P(A)=0.6$, $P(B)=0.3$, and $P(A \cap B)=0.2$, then $P(B|A)=$?

 
 
 
 

16. If events $A$ and $B$ are independent events with $P(A)=0.2$ and $P(B)=0.6$, then $P(A \cup B)=$?

 
 
 
 

17. If $P(A)=0.5$ and $P(B)=0.5$, then $P(A \cap B)$ is

 
 
 
 

18. The Complement of $P(A|B)$ is

 
 
 
 
 

19. A six-sided die is tossed three times. The probability of observing three ones in a row is

 
 
 
 

20. If events $A$ and $B$ are independent events with $P(A)=0.05$ and $P(B)=0.65$, then $P(A|B)=$?

 
 
 
 
What is the color of the snow?

MCQs Probability Questions with Answers

MCQs probability questions with answers
  • The Complement of $P(A|B)$ is
  • The probability of an intersection of two events is computed by using the
  • If two events $A$ and $B$ are mutually exclusive events, then
  • The range of probability is
  • In a statistical experiment, each time the experiment is repeated
  • The set of all possible outcomes (sample points) is called
  • The sample space (experimental outcomes) refers to
  • An experiment that consists of tossing 4 coins successively. The number of sample points in this experiment is
  • On a December day, the probability of snow is 0.30. The probability of a “cold” day is 0.50. The probability of snow and a “cold” is 0.15. Do snow and “cold” weather are independent events?
  • If $P(A)=0.5$ and $P(B)=0.5$, then $P(A \cap B)$ is
  • If $A$ and $B$ are independent events with $P(A)=0.6$ and $P(B)=0.6$, then $P(A \cap B)=$?
  • If events $A$ and $B$ are independent events with $P(A)=0.2$ and $P(B)=0.6$, then $P(A \cup B)=$?
  • If $A$ and $B$ are independent events with $P(A)=0.4$ and $P(B)=0.25$, then $P(A \cup B)=$?
  • Events $A$ and $B$ are mutually exclusive. Which of the following statements is true?
  • If events $A$ and $B$ are independent events with $P(A)=0.05$ and $P(B)=0.65$, then $P(A|B)=$?
  • A six-sided die is tossed three times. The probability of observing three ones in a row is
  • If $P(A|B)=0.3$
  • If events $A$ and $B$ are independent events with $P(A)=0.1$ and $P(B)=0.4$, then
  • If $P(A|B)=0.3$ and $P(B)=0.8$, then
  • If $P(A)=0.6$, $P(B)=0.3$, and $P(A \cap B)=0.2$, then $P(B|A)=$?
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