SOLUTION: An urn contains 8 white and 5 green balls. Four balls are randomly drawn from the urn in succession, with replacement. That is, after each draw, the selected ball is returned to th
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Question 1196925: An urn contains 8 white and 5 green balls. Four balls are randomly drawn from the urn in succession, with replacement. That is, after each draw, the selected ball is returned to the urn. What is the probability that all 4 balls drawn from the urn are white Answer by ikleyn(52787) (Show Source):
This probability is = = 0.1434 (rounded). ANSWER
We simply perform the same experiment 4 (four) times in a row, drawing one ball from the urn with replacement.