If P + Q = 1.00 then P and Q must be _________.
A) mutually exclusive
B) exhaustive
C) random
D) both mutually exclusive and exhaustive

Question

Quizplus · Accepted Answer

Both mutually exclusive and exhaustive options must sum up to 1.00. Mutually exclusive refers to the situation where the occurrence of one event excludes the occurrence of the other, whereas exhaustive refers to the option where there is no possibility left out. Therefore, options P and Q must be both mutually exclusive and exhaustive.