alleryStart learning →The total area under a normal curve always adds up to what number?
AZero
BTen
CTwo
DOne
Answer & Solution
Correct answer: D. One
1. Area under the curve stands for the share of values in that stretch.
2. Every value in the data lies somewhere under the curve.
3. So the whole area comes to one, which is the same as 100 percent.
_Source: OpenStax High School Statistics (CC BY 4.0), section 6.2 Using the Normal Distribution_
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