Words that connect the lessons.

These are introductory definitions for this learning path. More advanced sources may add detail or use a term in a narrower context.

Mean

The sum of values divided by their count.

Median

The middle sorted value, or mean of the two middle values.

Population

The full group a study seeks to describe.

Selection bias

A distortion associated with who is included in a sample.

Make the vocabulary yours

For each term, write an example and a contrasting non-example. Explain how the term relates to a specific step in your project.