Question

Q and 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).

A) 0.34
B) 0.03
C) 0.31***
D) 0.4

Answer 1

Pr(QorR)=P(q)+Pr(r)-P(qANDr)
I dont get your answer

Answer 2

its 0.34

Answer 3

i got 0.4