A pet store has two tanks of tropical fish. The first tank contains 5 blue fish and 8 yellow fish and the second tank contains 4 blue fish and 3 yellow fish. If Keisha randomly purchases a fish from each tank, what is the probability that both fish will be blue?

Answer 1

Well, in the first tank 5/13
in the second tank 4/7
two independent events, both must happen
5/13 * 4/7
This is an "and" problem, multiply