Discrete Variables Are to _____ and Continuous Variables Are to _____

Multiple Choice

Discrete variables are to _____ and continuous variables are to _____.

A) whole units; whole units and/or fractional amounts
B) whole units and/or fractional amounts; whole units
C) usually nominal and ordinal scales; usually interval and ratio scales
D) whole units and usually nominal and ordinal scales; whole units and/or fractional amounts and usually interval and ratio scales