When data is collected using a quantitative, ratio 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.
D) The "5 to the k rule" can be applied.

Question

Quizplus · Accepted Answer

When data is collected using a quantitative, ratio variable, the upper and lower class limits must be calculated for creating a frequency distribution to summarize the data. Choice B is incorrect because a pie chart is suitable for summarizing qualitative data, not quantitative, ratio data. Choice C is incorrect because the number of classes is not necessarily equal to the number of variable's values, as it depends on the data range and distribution. Choice D is incorrect as the "5 to the k rule" is relevant for determining the number of classes in a frequency distribution for interval data, not ratio data.

When Data Is Collected Using a Quantitative, Ratio Variable, What