Sachin buys fish from a shop for his aquarium. The shopkeeper takes out one fish at random from a tank containing 5 male fish and 8 female fish. What is the probability that the fish taken out is a male fish?

Solution:

Since, the shopkeeper has 5 male fish and 8 female fish.

∴ Sample Space  = {}

n(S) = 13

Let A = Event of getting a male fish

Since, he has 5 male fishes

∴ n(A) = 5

P(A) = n(A) = 5 n(S) 13