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In a side-by-side stem-and-leaf plot that compares two data sets, what do the two sets share?
AEach set keeps its own separate stems
BEach set keeps its own leaf ordering only
CThe two sets share one column of leaves
DThe two sets share the same stems
Answer & Solution
Correct answer: D. The two sets share the same stems
1. A side-by-side plot is built to let two data sets be compared directly.
2. One column of stems is written down the middle of the display.
3. One set of leaves is written to the left of that column and the other set to the right.
4. Keeping separate stems would destroy the comparison, and the leaves are never merged into a single column.
_Source: OpenStax Introductory Business Statistics (CC BY 4.0), Ch 2 "Descriptive Statistics", section 2.1 Display Data_
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