Stem and leaf diagrams, show the frequency of values.
Frequency distribution tables and histograms can also be used
Data Set -> 12, 13, 21, 27, 33, 34, 35, 37, 40, 40, 41
Frequency Distribution Table
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Stem and leaf plot allows us to see the same into plus each individual data points
| stem = tens digit leaves = ones digit |
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-horizontal leaves compound to vertical bars of histogram
-length of leaves = #s in frequency table