Ezra counts the number of passengers who are already on the bus when he gets on each morning. His data for the last 15 days are

Response:

I believe the answer is 6.

Detailed breakdown:

First, you need to identify both the upper and lower quartiles.

The upper quartile equals 10.

The lower quartile equals 16.

Next, subtract the lower quartile from the upper quartile, resulting in 6.

Your answer is 6.

If you need further assistance, feel free to ask!