Question

fill in the blank so that the resulting statement is true. if it is possible for the events a and b to occur simultaneously, then p(a or b)=____ if it is possible for the events a and b to occur simultaneously, then p(a or b)=

Explanation:

Step1: Recall probability formula

When events A and B are not mutually - exclusive (can occur simultaneously), the formula for the probability of A or B is based on the addition rule of probability.
The formula is $P(A\cup B)=P(A)+P(B)-P(A\cap B)$.

Answer:

$P(A)+P(B)-P(A\cap B)$