Case in point: one of the top-selling Christmas albums of the past decade belongs toKenny G. No wonder some folks find the holidays depressing.

Name each point you use with a letter. If you don't provide a diagram, you will need to describe the named points with words (ex., say "the intersection of AE and DB is G ").

Cross-Sectional: The sample of elements is measured only once. This shows you a snapshot of variables at a point in time (e. g. , market survey).