Two events are mutually exclusive if( )
A: the
probability of their intersection is 1.
B: they have no sample points in common.
C: the
probability of their intersection is 0.5.
D: the
probability of their union is 1 and they have no sample points in
common.
A: the
probability of their intersection is 1.
B: they have no sample points in common.
C: the
probability of their intersection is 0.5.
D: the
probability of their union is 1 and they have no sample points in
common.
举一反三
- If two events are mutually exclusive, they have no outcomes in common.
- 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, the probability that they both will occur at the same time is :（） A: 0.50. B: 1.00. C: 0.00.
- 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
- The intersection of two mutually exclusive events must always be equal to 0.