When data are collected using a qualitative,nominal variable (e.g.,male or female),what is true about a frequency table that summarizes the data?
A)The upper and lower class limits must be calculated.
B)Class midpoints can be computed.
C)The number of classes corresponds to the number of a variable's values.
D)The "2 to the k rule" can be applied.

Question

Quizplus · Accepted Answer

Since the data is nominal, there are no numerical values to calculate class limits, midpoints or apply the "2 to the k rule". The frequency table will simply list the categories of the variable and the corresponding frequencies, with the number of classes equal to the number of unique values in the variable.

When Data Are Collected Using a Qualitative,nominal Variable (E