Use Bayes' Theorem to Find the Indicated Probability

question 82

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

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