Thinking Mathematically (6th Edition)

Fill the blanks with ... mutually exclusive... ... $P(A)+P(B)$ .
If it is impossible for events $A$ and $B$ to occur simultaneously, the events are mutually exclusive. If $A$ and $B$ are mutually exclusive events, then: $P$ ( A or B ) $=P(A)+P(B)$. ----------- Fill the blanks with ... mutually exclusive... ... $P(A)+P(B)$ .