If the event A is not affected by event B, then events A and B are
said to be(
).
A: mutually exclusive.
B: independent.
C: collectively exhaustive.
D: None of the above.
said to be(
).
A: mutually exclusive.
B: independent.
C: collectively exhaustive.
D: None of the above.
举一反三
- If the outcome of event A is not affected by event B, then events A and B are said to be:（） A: mutually exclusive. B: statistically independent. C: collectively exhaustive.
- 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.
- 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, 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 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