Appendix A.17
Boxplot Builder
Create box-and-whisker plots to visualize the five-number summary and identify outliers.
Interactive Boxplot Builder
Symmetric Distribution: Test scores with balanced spread around the center
Five-Number Summary
Min
45
59.5
Median
71.0
82.8
Max
95
Boxplot Visualization
Box (Q1 to Q3) Median Whiskers
IQR & Fences
IQR: 82.8 - 59.5 = 23.3
Lower Fence: 59.5 - 1.5(23.3) = 24.6
Upper Fence: 82.8 + 1.5(23.3) = 117.6
Whiskers end at: 45 (low) and 95 (high)
Outliers
No outliers detected in this dataset.
Distribution Shape
Symmetric
The median is roughly centered in the box, and the whiskers are approximately equal in length.