A research wants to compare the means of three groups in his experiment. Which of the following is the most effect method of doing so?
A) frequency polygon
B) stem-and-leaf graph
C) bar chart
D) scatterplot

Question

Quizplus · Accepted Answer

A bar chart is the most effective method for comparing the means of three groups because it visually represents the mean values of each group side by side, making comparisons straightforward.

A Research Wants to Compare the Means of Three Groups