Qand r are not mutually exclusive events. if p(q) = 0.12, p(r) = 0.25, and p(q and r) = 0.03, find p(q or r).

0.34

Step-by-step explanation:

The probability of A or B occurring if they are not mutually exclusive is given by

P(A)+P(B)-P(A and B)

In this case, we have

P(q)+P(r)-P(q and r)

= 0.12+0.25-0.03 = 0.34