An urn contains 3 red and 7 black balls. Players and withdraw balls from the urn consecutively until a red ball is selected. Find the probability that selects the red ball. (draws the first ball, then and so on. There is no replacement of the balls drawn.)
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Home » Mathematics » An urn contains 3 red and 7 black balls. Players and withdraw balls from the urn consecutively until a red ball is selected. Find the probability that selects the red ball. (draws the first ball, then and so on.