Question

1. for which of the following research objectives would a pie chart be most suitable?

a. showing the composition of a whole
b. illustrating the correlation between two variables
c. comparing quantities across different categories
d. tracking changes over time

Explanation:

A pie chart is a circular statistical graphic, which is divided into slices to illustrate numerical proportion. It is mainly used to show the composition of a whole. For example, if we want to show the proportion of different departments in a company's total employees, a pie chart can clearly display each department's share.

• Option b: To illustrate the correlation between two variables, a scatter - plot is more suitable.
• Option c: For comparing quantities across different categories, a bar chart is a better choice.
• Option d: To track changes over time, a line chart is usually used.

Answer:

A. Showing the composition of a whole