Question: Data was collected for 416 randomly selected 10 minute intervals. For each ten-minute interval, the number of people entering the atrium of a large mall

Data was collected for 416 randomly selected 10 minute intervals. For each ten-minute interval, the number of people entering the atrium of a large mall were recorded. The data is summarized in the table below.

Number of Guests	Frequency
40 - 49	76
50 - 59	85
60 - 69	90
70 - 79	75
80 - 89	90

What is the class width for this GFDT? Class width =

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