At sally's hair salon there are three hair stylists. 28% of the hair cuts are done by chris, 30% are done by karine, and 42% are done by amy. chris finds that when he does hair cuts, 4% of the customers are not satisfied. karine finds that when she does hair cuts, 5% of the customers are not satisfied. amy finds that when she does hair cuts, 5% 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?

0.4449 or 44.49%

Step-by-step explanation:

The total probability of customer not leaving satisfied is given by the sum of the product of the probability of each stylist doing a hair cut by the probability of the customer not being satisfied with the cut:

The probability of Amy doing a hair cut given that the customer was not satisfied is:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10