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A numerical characteristic of the whole population is called a:
AA parameter
BA statistic
CA variable
DA data point
Answer & Solution
Correct answer: A. A parameter
1. Numbers about the population and numbers about the sample get different names.
2. A parameter is a numerical characteristic of the whole population that can be estimated by a statistic.
3. From the sample data, we can calculate a statistic.
4. The statistic is an estimate of a population parameter.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 1 'Sampling and Data', sections 1.1-1.4_
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