Which of the following variables are qualitative and which are quantitative? if the variable is quantitative, then specify whether the variable is discrete or continuous.
a. colors of cars in a mall parking lot. qualitative quantitative; discrete quantitative; continuous
b. time it takes each student to complete a final exam. qualitative quantitative; discrete quantitative; continuous
c. the number of patrons who frequent a restaurant. qualitative quantitative; discrete quantitative; continuous