Mathematics, 18.09.2019 03:30, dfbernalloboguerrero

10 red cards and 10 and black cards are placed in a bag. you choose one card and then another without replacing the first card. what is the probability that the first card will be red and the second card will be black?

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10 red cards and 10 and black cards are placed in a bag. you choose one card and then another withou...