A random sample of people at a dept of motor vehicles


A random sample of people at a dept of motor vehicles service center had the following wait times (in minutes) 7, 11, 14, 9, 18, 7, 11, 9, 7, 13. Find the mean, variance, and standard deviation of the data set. Please show all your work.

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Mathematics: A random sample of people at a dept of motor vehicles
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