The data set is as follows: Ford, Ford, Chevy, Toyota, Ford, Ford, Chevy, Dodge, Dodge, Dodge, Ford, Subaru, Chevy, Toyota, Chevy. What measures of central tendency and dispersion will be used with this set?
a. Difference scores
b. Range
c. Median
d. Mode
ANS: D
The data are not inherently numerical in nature and represent only a nominal level of measurement. None of the listed measures of variability are suitable for nominal-level data. The mode is the only measure of central tendency appropriate for nominal data. The mode is the numerical value or score that occurs with the greatest frequency in a data set.
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