Question

P(A) =0.4, P(B)=0.7, P(A nB) = 0.3 Find (-An-B)
​

Answer 1

Answer:

Given, P(A)=0.4,P(B)=p, and P(AUB)=0.7

A and B are independent events.

⇒P(AUB)=P(A)+P(B)−P(A)×P(B)

0.7=0.4+p−0.4p

p=

2

1