Data was collected for 221 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 100 – 119 45 120 – 139 76 140 – 159 56 160 – 179 17 180 – 199 27 What is the class width for this GFDT?

20

Step-by-step explanation:

From the above question, we were given the following information:

Number of Guests = Frequency

100 – 119 = 45

120 – 139 = 76

140 – 159 = 56

160 – 179 = 17

180 – 199 = 27

Class width can be defined as :

The difference between the upper limits of two consecutive classes, or the difference between the lower limits of two consecutive classes.

The class width for this GFDT : 139 - 119

= 20