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A First Course in Probability | 9th Edition | ISBN: 9780321794772 | Authors: Sheldon Ross
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Urn A has 5 white and 7 black balls. Urn B has 3 white and

Chapter 3, Problem 38P

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QUESTION:

Problem 38P

Urn A has 5 white and 7 black balls. Urn B has 3 white and 12 black balls. We flip a fair coin. If the outcome is heads, then a ball from urn A is selected, whereas if the outcome is tails, then a ball from urn B is selected. Suppose that a white ball is selected. What is the probability that the coin landed tails?

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QUESTION:

Problem 38P

Urn A has 5 white and 7 black balls. Urn B has 3 white and 12 black balls. We flip a fair coin. If the outcome is heads, then a ball from urn A is selected, whereas if the outcome is tails, then a ball from urn B is selected. Suppose that a white ball is selected. What is the probability that the coin landed tails?

ANSWER:

Step 1 of 2

It is given that there are 5 white and 7 black balls in urn A and 3 white and 12 black balls in urn B.

The outcome of the fair coin flipped comes out to be a head then a ball from urn A is selected.

If the outcome of the coin is comes out to be tail, then a ball from urn B is selected.

Using this we need to find the probability that the flip of the coin results in tail suppose a white ball is selected.

 

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