In computing descriptive statistics from grouped data,
A)data values are treated as if they occur at the midpoint of a class
B)the grouped data result is more accurate than the ungrouped result
C)the grouped data computations are used only when a population is being analyzed
D)All of these answers are correct.

Question

Quizplus · Accepted Answer

In computing descriptive statistics from grouped data, data values are treated as if they occur at the midpoint of a class. This is a common method used in statistics to handle data that is grouped into intervals or classes. The midpoint is seen as a representative value for the entire class. The accuracy of the grouped data result depends on the number and width of the intervals, and the variability of the data within each interval.

In Computing Descriptive Statistics from Grouped Data