Question

Data was collected for 289 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 – 18463185 – 18951190 – 19473195 – 19945200 – 20457

Answer 1

Given:

Data was collected for 289 randomly selected 10-minute intervals. For each ten-minute interval, the number of people entering the atrium of a large mall was recorded. The data is summarized in the table below.

Number

of Guests Frequency

180 – 18463

185 – 18951

190 – 19473

195 – 19945

200 – 20457

Required:

Find the class width for the given frequency table.

Step-by-step explanation:

The class width is the difference between the lower class and the upper-class boundaries.

For the first interval

lower class boundary = 180

upper-class boundary = 184

Class width = 184 - 180 = 4

Similarly for the second interval

Class width = 189 - 185 = 4

So we can observe from the table that the class width for each interval in the table is the same.

Final Answer:

The class width for the given frequency table is 4.