Question

and
If P(A)=1/3 P(B)=3/4
P(AUB)=11/12 then P(B/A) is​

Answer 1

Answer:

Given,

          P(A)= 1/3  

         P(B)= 3/4

         P(AUB) = 11/12

We know that,   P(AUB) = P(A)+ P(B) - P(A∩B)  

=> P(A)+ P(B) - P(A∩B) = 11/12  

=> P(A∩B) = ( 1/3 + 3/4 ) - 11/12

                 = 2/12

                 = 1/6  

Therefore,  

P(B/A)= P(A∩B) / P(A)

         = (1/6) / (1/3)  

         = 1/2

                    Hope it helps you ^_^