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2 years ago

5

Urn I contains 2 red balls and 2 white balls. Urn II contains 13 white balls. A ball is selected at random from urn I and placed

in urn II. Then a ball is selected at random from urn II. What is the probability that the second ball is white?

1 answer:

beks73 [17]2 years ago

6 0

15/17 Because there is a 13/13 chance but then you put a ball in from Urn 1 and that is 2/4. Also, 13/13 plus 2/4 = 15/17

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