QuestionFind $P(A$ or $B)$ given $P(A)=0.50$, $P(B)=0.30$, and $P(A$ and $B)=0.15$. Options: A. 0.80 B. 0.18 C. 0.20 D. 0.65

Studdy Solution
Calculate the value of(A or B).
$$(A \, or \, B) =0.50 +0.30 -0.15 =0.65$$So, the probability of either event A or event B occurring is0.65. The correct answer is D.0.65.