Practice problem
Group the following stem and leaf plot into its appropriate classes.
0-19, 20-39, 40-59, 60-79, 80-99
0-9, 20-29, 40-49, 60-69, 80-89
0-14, 15-29, 30-44, 45-59, 60-74, 75-89
None of the above
Type a concept, like “slope” or “photosynthesis”.