SOLUTION: Urn 1 contains 2 blue and 3 green balls. Urn 2 contains 4 blue and 3 green balls. A ball is randomly drawn from urn 1, without replacement, and then placed inside urn 2. A ball

Question 1183861: Urn 1 contains 2 blue and 3 green balls. Urn 2 contains 4 blue and 3 green balls. A ball is randomly drawn from urn 1, without replacement,
and then placed inside urn 2. A ball is then drawn randomly from urn 2 and placed back in urn 1. If a ball is to be randomly drawn from urn 1,
what is the probability that the ball is blue?
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
I will go quickly over the details, and show the solution briefly.

You should be clever enough to see flow of the solution.

Therefore the probability of drawing blue from urn 1 the second time around is the sum of all preceding probabilities, or .
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