Question: Urn I contains two white chips and one red chip; urn II has one white chip and two red chips. One chip is drawn at

Urn I contains two white chips and one red chip; urn II has one white chip and two red chips. One chip is drawn at random from urn I and transferred to urn II. Then one chip is drawn from urn II. Suppose that a red chip is selected from urn II. What is the probability that the chip transferred was white?

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