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The following data represent the amount of time (in minutes) a random sample of eight students took to complete the online portion of an exam

The following data represent the amount of time (in minutes) a random sample of eight students took to complete the online portion of an exam in Sullivan's Statistics course. Compute the range, sample variance, and sample standard deviation time.
60.5, 128.0, 84.6, 122.3, 78.9, 94.7, 85.9, 89.9

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