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.
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.
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 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
- 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
- Which of the following statements is most accurater A set of events is mutually exclusive means:（） A: the events cover all possible outcomes. B: only one event can occur at a time. C: the sum of all the events' probabilities equals one.
- 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.