To determine the probability that both events occur, we need to multiply their probabilities together, using the formula for the intersection of two independent events:
P(A and B) = P(A) × P(B)
Let A be the event "it rains tomorrow" and B be the event "I oversleep tomorrow". We are given:
P(A) = 1/2
P(B) = 1/4
So the probability that both events occur is:
P(A and B) = P(A) × P(B) = (1/2) × (1/4) = 1/8
Therefore, the answer is (a) 1/8.