# Definition:Scatter Diagram

## Definition

A scatter diagram is a technique of graphical representation of the distribution of ordered pairs of random variables.

The ordered pairs are treated as points in a Cartesian plane: the first coordinate along the $x$-axis and the second coordinate along the $y$-axis.

## Also known as

A scatter diagram is also known as a scattergram or a scatterplot / scatter plot.

## Sources

Part $\text {I}$: Stochastic Models and their Forecasting:
$2$: Autocorrelation Function and Spectrum of Stationary Processes:
$2.1$ Autocorrelation Properties of Stationary Models:
$2.1.2$ Stationary Stochastic Processes: Autocovariance and autocorrelation coefficients