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Easy: Least, greatest and counting
In a stem-and-leaf plot each data value is split into a stem (the tens digit) and a leaf (the ones digit). The row 4 | 2 5 7 stands for 42, 45 and 47. The leaves are in order, so the plot lists the whole data set from least to greatest, which makes the median easy to find.
Use the stem-and-leaf plot to answer each question.
Tip: tick “Step-by-step answer key” in the generator to print each step for marking.
Ordered leaves turn the plot into a sorted list, so the least, greatest and median can be read directly. An unordered plot still shows the data but loses that advantage.
No data values fall in that range. For example, an empty 3 row means no values from 30 to 39; it is kept so the gap in the data is visible.
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