Answer: 3/5
Explanation:
P(B/A) is the shorthand way of saying "what is P(B) if we are 100% certain that event A has occured?"
Because events A and B are independent, they do not affect one another. The fact that A happens doesn't change P(B) at all.
Therefore, P(B) = P(B/A) when A & B are independent events.
Similarly, P(A) = P(A/B) when the two events are independent.
