Two events, A and B, are mutually exclusive and each have a nonzero probability. If event A is known to occur, the probability of the occurrence of event B is
A)one
B)any positive value
C)zero
D)any value between 0 to 1

Question

Quizplus · Accepted Answer

If events A and B are mutually exclusive, it means that they cannot occur at the same time. Therefore, if event A has occurred, it is impossible for event B to occur. Thus, the probability of event B occurring given that event A has occurred is zero.

Two Events, a and B, Are Mutually Exclusive and Each