An experiment consists of making 80 telephone calls in order to sell a particular insurance policy. The random variable in this experiment is a Select one: a. discrete random variable b. continuous random variable c. complex random variable d. simplex random variable

a. discrete random variable

Step-by-step explanation:

A discrete random variable is one which may take on only a countable number of distinct values such as 0, 1, 2, 3, 4, etc. Discrete random variables are usually countable.

From the question:

The experiment consist of making 80 telephone calls in order to sell a particular insurance policy. 80 here is the random variable; 80 is countable anf finite.

So, 80 is a discrete random variable

4

step-by-step explanation:

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)