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Concept explainers
WAITNG LINES The accompanying data were obtained in a study conducted by the manager of SavMore Supermarket. In this study, the number of customers waiting in line at the express checkout at the beginning of each 3-min interval between 9 A.M. and 12 noon on Saturday was observed.
Customers | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
Frequency of Occurrence | 1 | 4 | 2 | 7 | 14 | 8 | 10 | 6 | 3 | 4 | 1 |
a. Find the probability distribution of the random variable
b. Draw the histogram representing the probability distribution.
c. Find the probability that the number of customers waiting in any 3-min interval between 9 A.M. and 12 noon is between 1 and 3, inclusive.
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Chapter 8 Solutions
Finite Mathematics for the Managerial, Life, and Social Sciences-Custom Edition
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