Dr.Choi is examining the weights of 750 children, 2 to 18 years old, to find out if childhood obesity rates are increasing in his city.With this type of data, is it better to use a frequency table or a grouped frequency table? Why?
A) A frequency table is better because the data are discrete whole numbers.
B) A frequency table is better because the data cover a small range.
C) A grouped frequency table is better because the data are a large set of continuous intervals.
D) A grouped frequency table is better because the data are nominal.

Question

Quizplus · Accepted Answer

A grouped frequency table is better because the data are a large set of continuous intervals. The age range of 2 to 18 years for 750 children will result in a large range of weights, which is better presented using intervals in a grouped frequency table. This will make the data more manageable to analyze and easier to present visually. A frequency table is typically used for data that is more discrete and covers a smaller range.

DrChoi Is Examining the Weights of 750 Children, 2 to 18