Question

2
12. If P(A)=1/3, P(B) = 1/4, P(AUB)= 1/2 then
P(B given A) is
(1) 0.15 (2) 0.20 (3) 0.35
(4) 0.25
(2 Points)
Ontion 4​

Answer 1

Answer:

Correct option is

A

0.39

P(A∪B)=P(A)+P(B)−P(A∩B)

⇒P(A∪B)=0.25+0.50−0.14=0.61

P(neither A nor B)=P(

A

ˉ

∩

B

ˉ

)=1−P(A∪B)=1−0.61=0.39