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, 130 were happy with the service and 118 were not. Of those who had made no purchase, 140 were happy with the service and 312 were not. Find the probability that a shopper who was happy with the service had made a purchase (round off to the nearest hundredth).

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, 130 were happy with the service and 118 were not. Of those who had made no purchase, 140 were happy with the service and 312 were not. Find the probability that a shopper who was happy with the service had made a purchase (round off to the nearest hundredth).

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.8: Probabilities Of Disjoint And Overlapping Events

Problem 2C

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