Box-and-Whisker Plots

 

 

 

Exploring Quartiles

            Lower Quartile (Q1), Upper Quartile (Q3), Median (Q2)

 

And the Winner Is?—Parts 1 and 2

 

Modified Box Plots and Outliers

            IQR—interquartile range—range of middle 50% of the data

           

            Box goes from Q1 to Q3—Q2 is inside the box

 

            Outliers are half of a box to the left Q1 or to the right of Q3

            Whiskers do not extend to outliers