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A distribution is symmetrical when a vertical line can be drawn so that the two sides are:
ABoth skewed left
BBoth skewed right
CMirror images
DEqual in height
Answer & Solution
Correct answer: C. Mirror images
1. Symmetry is a statement about the shape of the histogram.
2. A distribution is symmetrical if a vertical line can be drawn at some point in the histogram.
3. The condition is that the shape to the left and the right of that line are mirror images of each other.
4. Equal heights alone would not guarantee the shapes match.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 2 'Descriptive Statistics', sections 2.1-2.7_
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