Question

The dot plot below shows how many laps each student in Coach Toni's gym class ran one day.

Answer 1

12.5 because you add up all of the number of laps. Then you divide that from how laps there were.

Answer 2

$\underbrace{5;5;5;5;10;10;15;15;20;35}_{10}\\\\5\cdot4+10\cdot2+15\cdot2+20+35=125\\\\\frac{125}{10}=12.5\leftarrow\boxed{B}$