Carl and Angela both work at a computer store. Each salesperson recorded the number of computers sold each month for a year. Box-and-whisker plots representing the number of computers sold per month are shown at the right.
a. What is the interquartile range of Carl's sales?
b. What is the median of Angela's sales?
c. Which person appears to be a better computer salesperson? Briefly explain your reasoning
The solution determines the interquartile range in a box and whisker plots.