At Tampa Bay Shopping Mall 100 shoppers were interviewed. 55 had Master Card, 40 had Discover Card and 15 had both cards. An individual from this group is selected at random. Let M be the event the person has a Master Card and let D be the event the person has a Discover Card. Find the probability of getting a person having a Master Card and a Discover Card. ________________ Are M and D mutually exclusive?______Justify.__________________ Compute P(D | M).______________________________________ Compute P(D). ______________________Using the results of parts 3 & 4 of this problem, state whether M and D are independent events. _______ Justify ____________________________Compute P(D or M). ________________________________________ Answer only 4-6

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Answered: At Tampa Bay Shopping Mall 100 shoppers…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.6: Permutations

Problem 31E

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At Tampa Bay Shopping Mall 100 shoppers were interviewed. 55 had Master Card, 40 had Discover Card and 15 had both cards. An individual from this group is selected at random. Let M be the event the person has a Master Card and let D be the event the person has a Discover Card.

Find the probability of getting a person having a Master Card and a Discover Card. ________________

Are M and D mutually exclusive?______Justify.__________________

Compute P(D | M).______________________________________
Compute P(D). ______________________
Using the results of parts 3 & 4 of this problem, state whether M and D are independent events. _______ Justify ____________________________
Compute P(D or M). ________________________________________

Answer only 4-6

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