A
line plot is a data display, along a number line, which shows
frequency.
The frequency is represented with a marker, like an
x or a dot.
There are 2 x's above . This means 2 athletes ate cup of oatmeal.
There are 5 x's above . This means 5 athletes ate cup of oatmeal.
There are 4 x's above . This means 4 athletes ate cup of oatmeal.
There are 3 x's above . This means 3 athletes ate cup of oatmeal.
Two athletes ate cup of oatmeal. Add cup, two times.
So, the athletes who ate cup of oatmeal, ate a total of cup of oatmeal.