The number of sales calls made by certain employees during a special time span are given. 141, 137, 136, 135, 134, 132, 131, 130, 130, 130, 126, 125, 125, 124, 124, 122, 122, 121, 121, 119.Find the inner-quartile range for the set of sales calls.
A. 10
B. 6
C. 22
D. 11
Answer: A
Mathematics
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