The number of customers that enter a store during one day is

The number of customers that enter a store during one day is an example of:

A. either a continuous or a discrete random variable, depending on the gender of the customers

B. either a continuous or a discrete random variable, depending on the number of the customers

C. a continuous random variable

D. a discrete random variable

D. A DISCRETE RANDOM VARIABLE

[It is not continuous as we cannot have say, 1/2 customer, 3.14 customers, etc. in one day.]