Question: Data was collected for 320 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 320 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
220 - 239	29
240 - 259	52
260 - 279	84
280 - 299	72
300 - 319	83

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

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