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

-a continuous random variable

-a discrete random variable

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

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

a discrete random variable

Step-by-step explanation:

You can only have a natural number of clients entering the store.

For example, 0 clients, 1 client, 2 clients, 100 clients, ...

You cannot have a decimal value, for example, 0.5 clients.

So the correct answer is:

a discrete random variable

the answer would be the last one (constat) she stays at the same rat every two mintues it goes up by 0.4

step-by-step explanation:

if you mean

then it's c. 8, -7/3

but if you mean

then it is