# Sampling Framework

Get an overview of a sampling framework with its terminology and notation.

## We'll cover the following

Let’s introduce some terminology and notation as well as statistical definitions related to sampling. Keep in mind, however, that all of the concepts underlying the terminology, notation, and definitions tie directly to the concepts underlying our tactile and virtual sampling activities. It’ll simply take time and practice to become proficient in these concepts.

## Terminology and notation

Let’s explore the terminologies and mathematical notations relating to sampling:

**Population:**This is a collection of individuals or observations we’re interested in. This is also commonly denoted as a**study population**. We mathematically denote the population’s size using upper-case$N$ . In our sampling activities, the (study) population is the collection of$𝑁$ = 2,400 identically sized red and white balls contained in the bowl.

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