An example of interval data would be ________.

A) classifying customers by geographical region
B) rating a movie as bad,good,or excellent
C) ranking potential employees by SAT scores
D) comparing retail stores by number of units sold

Interval data is characterized by not only the order of the values but also the exact differences between them being meaningful. SAT scores are an example of interval data because the difference between scores is consistent and meaningful, allowing for a precise measurement of academic ability. Choices A and B represent nominal and ordinal data, respectively, where the exact difference between data points is not meaningful or not consistently measurable. Choice D represents ratio data, where there is a true zero point and the differences between data points are meaningful.