Question

multiple select question
select all that apply
which of the following are discrete variables?
□ the number of customers using an atm on a given day.
□ the number of cars for sale on a used car lot.
□ the amount of time a student studied for a test.
□ the height of trees in central park.

Explanation:

Discrete variables are countable, distinct values with no intermediate values possible.

1. The number of ATM customers is a countable whole number (you can't have a fraction of a customer).
2. The number of cars for sale is a countable whole number (you can't have a fraction of a car).
3. Study time is a continuous variable (it can take any value within a range, e.g., 1.5 hours, 2.25 hours).
4. Tree height is a continuous variable (it can take any value within a range, e.g., 10.3 feet, 12.75 feet).

Answer:

A. The number of customers using an ATM on a given day.
B. The number of cars for sale on a used car lot.