Question

If P(A)=1/2 and P(B)=1/2 and P(B|A)=1/3, P(A or B)=?

Answer 1

Answer:$1/2$

Step-by-step explanation:

P(BlA)= P(A · B)

               P(B)

P(1/2)(1/2)=1/4

P(1/2)

$1/2$ ÷ $1/4$

1/2