To draw a boxplot, you need to first find five values: (a) minimum (b) Q1 (first quartile) (c) median (d) Q3 (third quartile) (e) maximum Then draw an appropriate scale and make the boxplot. The minimum, median and maximum should not be difficult to find. Finding the quartiles is more work: (1) First, make sure numbers are in increasing order. (2) Locate the median (or solve for the median) (3) To find Q1 (first quartile): Find the median of ALL values that are below the median. (4) To find Q3 (third quartile): Find the median of ALL values that are above the median.