Two probabilities may be added when we are asked
A) an "or" question and the events are independent.
B) an "or" question and the events are mutually exclusive.
C) an "and" question and the events are independent.
D) an "and" question and the events are mutually exclusive.

Question

Quizplus · Accepted Answer

Probabilities may be added directly when we are dealing with an "or" question and the events in question are mutually exclusive, meaning they cannot both occur at the same time. This is because the occurrence of one event does not affect the probability of the other occurring.

Two Probabilities May Be Added When We Are Asked