If two equally likely events A and B are mutually exclusive and collectively exhaustive, what is the probability that event A occurs?
A: 0
B: 0.5
C: 1
D: cannot be determined from the information given
A: 0
B: 0.5
C: 1
D: cannot be determined from the information given
举一反三
- If two events are mutually exclusive and collectively exhaustive, what is the probability that both occur? A: 1 B: 0.5 C: 0 D: cannot be determined from the information given
- If two events are mutually exclusive, what is the probability that both occur at the same time? A: 0 B: 0.50 C: 1.00 D: cannot be determined from the information given
- If A and B are mutually exclusive events with P(A) = 0.70, then P(B)：（ ） A: can take any value between 0 and 0.70 B: cannot be determined from the information given C: cannot be larger than 0.30 D: can take any value between 0 and 1
- If two events are mutually exclusive, then A: a. their probabilities can be added. B: b. they may also be collectively exhaustive. C: c. the joint probability is equal to 0. D: d. if one occurs, the other cannot occur. E: e. all of the above.
- If event A and event B cannot occur simultaneously, then events A and B are said to be:（） A: collectively exhaustive. B: statistically independent. C: mutually exclusive.