two balls are drawn at random in succession without replacement from an urn containing 4 red balls and 6 black balls. find the probabilities of all possible outcomes
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probability of red balls =4/10
probability of black balls=6/10
probability of black balls=6/10
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Total Outcomes= 6+4 = 10
probability of getting red ball= 4/10=2/5
probability of getting black ball = 6/10 = 3/5
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