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The following data are the number of calls 20 customer sustain reps took in one hour:
10, 10, 15, 18, 20, 21, 22, 24, 24, 25, 26, 26, 26, 28, 30, 31, 33, 38, 40, 42
Find out the:
a. Mid-range
b. Standard Variance
c. Standard Deviation
Statistics and Probability, Statistics
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