Do the data shown in the boxplot below have a greater amount

Do the data shown in the boxplot below have a greater amount of variability within levels A, B, C, and D or between the four levels? Explain.

Solution

There is greater amunt of variablity within levels A,B,C and D. The larger the range that is Q3-Q1 (upper quartile- lower quartile) the greater the variability. The above box plots are showing greater variability witin levels A,B,C and D.