If P (A) = 0.18, P (B) = 0.5 and P (B|A) = 0.2, find P(A n B)? Choices:
A) 0.36	B) 0.4	C) 0.42	D) 0.43	E) 0.64
P(B|0.36) = P(0.36 n B)/P(0.36)   P(0.36 n B) = P(B|0.36) × P(0.36)   P(0.36 n B) = 0.2 × 0.18   P(0.36 n B) = 0.36   0.36
<result>A</result>
If P (A) = 0.18, P (B) = 0.5 and P (B|A) = 0.2, find P(A n B)?