Unit Two:  Piecewise Functions

For example, "If x<0, return 2x, and if x≥0, return 3x." These are called *piecewise functions*, because their rules aren't uniform, but consist of multiple pieces.

Unit One:  Statistics

​Statistics is a branch of mathematics dealing with the collection, organization, analysis, interpretation and presentation of data. In applying statistics to, for example, a scientific, industrial, or social problem, it is conventional to begin with a statistical population or a statistical model process to be studied.