Question

a and b are two events such that and p(a ∩ b) = 0.2 then is equal to
​

Answer 1

A and B are two events such that P(

A

)=0.3,P(

B

)=0.25 and P(

A

∩

B

)=0.2 then P(

B

A

) is

Answer 2

Answer:

P(A)=0.7 & P(B)=0.75

P(

A

∩

B

)=0.2

P(

A∪B

)=0.2

P(A∪B)=0.8=P(A)+P(B)−P(A∩B)

P(A∩B)=0.7+0.75−0.8=0.65

∴P(

B

A

)=

0.75

0.65

=

15

13