Question

if P ( A ) = 0.4 and P( B ) = 0.3 ,then P ( AB ) is=​

Answer 1

Answer:

Given : P(A)=0.4,P(B)=0.3 , P(B/A)=0.5

P(B/A)=

P(A)

P(A∩B)

=

0.4

P(A∩B)

=0.5

∴P(A∩B)=0.4×0.5=0.20

P(A/B)=

P(B)

P(A∩B)

=

0.3

0.2

=

3

2

.