A box plot is a graphical technique which is used for
A) only one group of data
B) making comparisons between only two groups
C) making comparisons between two or more groups
D) summing the deviations from the mean and placing the sum in a box

Question

Quizplus · Accepted Answer

A box plot is commonly used to compare the distribution of a continuous variable between two or more groups. It displays the median, quartiles, range and outliers of each group's data. Therefore, option C is correct as it mentions that box plot is used for making comparisons between two or more groups. Option A and B are incorrect since a box plot is not limited to only one group or two groups. Option D is also incorrect as a box plot does not involve summing the deviations from the mean.

A Box Plot Is a Graphical Technique Which Is Used