An experimenter investigated the ability to concentrate as a function of eye color.Eye color was classified as having either blue eyes,brown eyes,or other eye color.Which type of graph should the experimenter use to display the results?
A)X and Y
B)histogram
C)bar
D)line

Question

Quizplus · Accepted Answer

A bar graph is the best choice as eye color is a categorical variable and bar graphs are used to display data with categorical variables. Each eye color category can be represented by a different color bar, and the height of each bar can represent the average concentration score for that group.

An Experimenter Investigated the Ability to Concentrate as a Function