Waiting lines the accompanying data were obtained in a


Question: WAITING 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.

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a. Find the probability distribution of the random variable X, where X denotes the number of customers observed waiting in line.

b. Draw the histogram representing the probability distribution.

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Basic Statistics: Waiting lines the accompanying data were obtained in a
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