Stem-and-leaf and box plots

What this note covers

1. Construct a readable stem-and-leaf plot
2. Produce a five-number summary
3. Distinguish ordinary and modified box plots
4. Read distribution from the display
5. Compare back-to-back data and quartiles
6. Answer an examined display question
7. Worked stem-and-leaf display and modified box plot from raw readings
8. Worked back-to-back comparison: shared scale, quartiles and inference limits

8 sections · 10 key terms & formulas · 6 common mistakes