Mathematics, 07.10.2019 06:30 zachstonemoreau

Abox contains 20 red marbles and 30 blue marbles. a second box contains 10 white marbles and 40 black marbles. if you choose one marble from each box without looking, what is the probability that you get a blue marble and a black marble?

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Abox contains 20 red marbles and 30 blue marbles. a second box contains 10 white marbles and 40 blac...