alleryStart learning →A normal curve is symmetric about a vertical line drawn through which value?
AThe mean
BThe range
CThe count
DThe total
Answer & Solution
Correct answer: A. The mean
1. A normal curve has one hump and two tails that fall away evenly.
2. The line of symmetry runs vertically through the mean.
3. Fold the picture along that line and the two halves match.
_Source: OpenStax High School Statistics (CC BY 4.0), section 6.1 The Standard Normal Distribution_
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