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Use Bayes' Theorem to Find the Indicated Probability

Question 199

Multiple Choice

Use Bayes' theorem to find the indicated probability.
-At Sally's Hair Salon there are three hair stylists. 27% of the hair cuts are done by Chris, 30% are done by Karine, and 43% are done by Amy.
Chris finds that when he does hair cuts, 6% of the customers are not satisfied. Karine finds that when she does
Hair cuts, 7% of the customers are not satisfied.
Amy finds that when she does hair cuts, 3% of the customers are not satisfied.
Suppose that a customer leaving the salon is selected at random. If the customer is not satisfied, what is the
Probability that their hair was done by Amy?


A) 0.03
B) 0.323
C) 0.347
D) 0.257

Correct Answer:

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