Quantitative variables are numerical values for which arithmetic operations such as means make sense. It is usually a measure of some sort. Categorical variables simply count which of several categories a person or thing falls. Question 1: Are the following categorical or quantitative? a) zip codes to gender b) list of subject heights social security number c) the ages of several subjects recent test scores e) subjects listed according f) students listed by g) students listed by d) the times it takes to make a button hole