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 collecting data using a quantitative, ratio variable, upper and lower class limits must be calculated for a frequency distribution. This is necessary to properly group the data into classes for a frequency distribution. Choice B is incorrect because a pie chart is not appropriate for summarizing quantitative, ratio data. Choice C is incorrect because the number of classes for a frequency distribution should be determined using an appropriate method such as the Sturges formula or the Freedman-Diaconis rule, not simply the number of variable values. Choice D is incorrect because the "5 to the k rule" is a guideline for determining sample size in statistical analysis, not for summarizing data in a frequency distribution.

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