Of three cards, one is painted red on both sides; one is painted black on both sides; and one is painted red on one side and black on the other. A card is randomly chosen and placed on a table. If the side facing up is red, what is the probability that the other side is also red?
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One is red on both sides (RR), one is black on both sides (BB), and one is red on one side and black on the other (RB). Show more…
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