An urn contains three red and two white balls. A ball is
Chapter , Problem 48(choose chapter or problem)
An urn contains three red and two white balls. A ball is drawn, and then it and another ball of the same color are placed back in the urn. Finally, a second ball is drawn.
a. What is the probability that the second ball drawn is white?
b. If the second ball drawn is white, what is the probability that the first ball drawn was red?
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