Probability Basicseasy
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A box contains 8 red marbles and 12 blue marbles. One marble is drawn and set aside (not replaced). What is the probability that the second marble drawn is red, given that the first marble drawn was red?
A box contains 8 red marbles and 12 blue marbles. One marble is drawn and set aside (not replaced). What is the probability that the second marble drawn is red, given that the first marble drawn was red?