Asked by maria

Urn A has balls numbered 1 through 7. Urn B has balls numbered 1 through 5. A ball is selected at random from urn A and then a ball is selected at random from urn B. What is the probability that a 4 is drawn from A followed by a 2 from B?
Answered by MathMate
Pa(4) = 1 ball out of 7
Pb(2) = 1 ball out of 5

Probability that both events will happen is the product of the two probabilities.


Answered by Ivan
1/35
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