A study of 2000 Verizon cellphone customers listed the annual incomes of the customers as well as other variables. The lowest income was $25,000 and the highest income was $145,000. To develop a frequency distribution with 6 classes, the smallest value that the class width can be is 20K.

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Quizplus · Accepted Answer

To find the smallest class width for a frequency distribution with 6 classes, you subtract the lowest value from the highest value and then divide by the number of classes. Here, ($145,000 - $25,000) / 6 = $120,000 / 6 = $20,000. This means the smallest class width to cover the range with 6 classes is indeed $20,000.

A Study of 2000 Verizon Cellphone Customers Listed the Annual