Question

Which of the following is a discrete random variable?

Answer 1

I say it is : the number of cars passing  tollbooth in a given hour
Hope this helps :)☺

Answer 2

Answer:

The number of cars passing a tollbooth in a given hour.

Step-by-step explanation:

Discrete variable is a variable that possess a countable number of values, means the value is obtained by counting.

1. the average annual increase in fuel price  - This is not discrete as the values can be decimal. And it is obtained by measuring, so it is continuous variable.

2. a car's speed at different times  - This is also not discrete. This is also continuous variable.

3. a person's weight - This is also not discrete.

4. the number of cars passing a tollbooth in a given hour  - This is discrete as we can count the number of cars.