When data is collected using a qualitative, nominal variable, what is true about a frequency distribution that summarizes the data?
A) Upper and lower class limits must be calculated.
B) A pie chart can be used to summarize the data.
C) Number of classes is equal to the number of variable's values plus 2.
D) The "5 to the k rule" can be applied.

Question

Quizplus · Accepted Answer

When data is collected using a qualitative, nominal variable, the best way to summarize the data is to use a pie chart to show the relative percentages of each variable value. Frequency distributions with upper and lower class limits, number of classes equal to the number of variable's values plus 2, or the "5 to the k rule" are more applicable to quantitative data.

When Data Is Collected Using a Qualitative, Nominal Variable, What