"The following box plot shows the number of years during which 20 schools have participated in an interschool swimming meet:

(Box plot shown below)*

At least how many schools have participated for 6 years or more?"

I'm stuck on this problem. Box plot questions always trip me! Does anyone out there think they can help me?

The following box plot shows the number of years during which 20 schools have participated in an interschool swimming meet Box plot shown below At least how man class=