7) In a bar chart:
A) Columns cannot be combined to represent values on two or more variables
B) Columns can combined to represent values on two or more variables but some kind of legend must be provided
C) Columns can be combined to represent values on two or more variables and a legend is not always necessary
D) If columns for two or more variables are combined the chart becomes a histogram

Question

Quizplus · Accepted Answer

Columns in a bar chart can indeed be combined to represent values on two or more variables, but to ensure clarity and understanding, a legend or some form of explanation is typically required to distinguish between the different variables represented.

7) in a Bar Chart