MCQs Probability-1

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

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

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

4. The sample space (experimental outcomes) refers to

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

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

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

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

9. The range of probability is

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

11. One 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?

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

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

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

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

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

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

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

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

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