Question

P(A)=1/4 P(B)=3/5 P(B/A)=?

Answer 1

If A and B are independent events,
then, `P(A)*P(B) =P(A nnB)`

`P(B|A)= (P(A nnB)) / (P(A))`

`P(B|A)= (cancel(P(A))*P(B))/ cancel(P(A))`

`P(B|A)= P(B) = 3/5`

Note that, since the events are independent, the outcome of B does not determine the outcome of A