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For a continuous random variable, probability is represented by:
AArea under the curve
BHeight of the curve
CSlope of the curve
DLength of the axis
Answer & Solution
Correct answer: A. Area under the curve
1. Continuous variables need a different picture from discrete ones.
2. The distribution of a continuous variable is drawn as a curve.
3. Probability is represented by area under the curve.
4. So a wider interval covers more area and more probability.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 5 'Continuous Random Variables', sections 5.1-5.3_
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