If a person wants people to determine the average weight of customers in a store,she could create a questionnaire where people check a category that indicates their weight: 110 to 119 pounds,120 to 129 pounds,and so forth.What statistic would be useful so she can include enough weight categories on her questionnaire?
A) range
B) median
C) mode
D) mean

Question

Quizplus · Accepted Answer

The range of weights in the store would give an idea of the minimum and maximum weight that people would report. This information can be used to decide on the number and size of weight categories to include in the questionnaire. For example, if the range of weights is 100 to 200 pounds, it would be better to have larger weight categories than if the range was 120 to 140 pounds. Therefore, including the range would be more useful than the other statistics (median, mode, mean) for deciding on the weight categories for the questionnaire.

If a Person Wants People to Determine the Average Weight