A numerical characteristic of the whole population is called a:

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_