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May 24, 2015

Homework Help: Math

Posted by Kimberly on Friday, November 20, 2009 at 10:08pm.

To determine what effect the salespeople had on purchases, a department store polled 700 shoppers as to whether or not they had made a purchase and whether or not they were pleased with the service. Of those who had made a purchase, 125 were happy with the service and 111 were not. Of those who had made no purchase, 148 were happy with the service and 316 were not.

Find the probability that a shopper who was happy with the service had made a purchase (round the answer to the nearest hundredth).

What can you conclude?
About what percent of those who were happy with the service made a purchase?

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