Question: Data was collected for 185 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 185 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
180 - 189 12
190 - 199 29
200 - 209 39
210 - 219 47
220 - 229 58

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

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