What is the probability of picking a green marble, then a blue marble if you do not put back the first marble in a jar full of 6 red, 4graan, 5 blue, 5 yellow marbles?
Find the probability of picking green (4/20), then find the probability of picking blue (5/19). Remember there is one less marble in the jar.
Finally multiply the probabilities and reduce to get 1/19
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