SOLUTION: An urn contains 5 red balls and 2 green balls. a ball is drawn. if it's green a red ball is added to the urn and if it's red a green ball is added to the urn.(the original ball is
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Question 903058: An urn contains 5 red balls and 2 green balls. a ball is drawn. if it's green a red ball is added to the urn and if it's red a green ball is added to the urn.(the original ball is not returned to the urn)then a second ball is drawn.what is the probability the second ball is red ?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
P(second all red) = both red + green then red =
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