Question

A call center is trying to better understand staffing requirements. It investigates the number of calls received during the evening shift and obtains the information given below. Construct a histogram of the data and comment on the key characteristics of the distribution. Construct a frequency polygon and compare it to the histogram. Which do you prefer and why?
Class Interval ...... Frequency
10–under 20 ....... 9
20–under 30 ........ 7
30–under 40 ....... 10
40–under 50 ......... 6
50–under 60 ....... 13
60–under 70 ......... 18
70–under 80 ........ 15



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  • CreatedFebruary 19, 2015
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