SOLUTION: A bag contains 5 red balls and 3 blue balls. If 5 balls are selected at random, find the probability of selecting 5 red balls.
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-> SOLUTION: A bag contains 5 red balls and 3 blue balls. If 5 balls are selected at random, find the probability of selecting 5 red balls.
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Question 1155839: A bag contains 5 red balls and 3 blue balls. If 5 balls are selected at random, find the probability of selecting 5 red balls. Answer by ikleyn(52756) (Show Source):
The number of all possible ways to select 5 different balls from the set of 5+3 = 8 balls is = = 56.
It is the number of all possible combinations of 8 balls taken 5 at a time.
(The order of balls does not matter, in this problem).
Of these 56 combinations, ONLY ONE contain 5 red balls.
Therefore, the probability the problems asks for is .
