Urn I contains three red chips and one white chip. Urn II contains two red chips and two white chips. One chip is drawn from each urn and transferred to the other urn. Then a chip is drawn from the first urn. What is the probability that the chip ultimately drawn from urn I is red?

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Urn I contains three red chips and one white chip. Urn II contains two red chips and two white chips. One chip is drawn from each urn and transferred to the other urn. Then a chip is drawn from the first urn. What is the probability that the chip ultimately drawn from urn I is red?

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Step 1

Given that,

Urn I contains 3 red chips and 1 white chip.

Urn II contains 2 red chips and 2 white chips.

One chip is drawn from each urn and transferred to the other urn. Then a chip is drawn from the first urn.

We need to find, What is the probability that the chip ultimately drawn from urn I is red?

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