Table of Contents
- Leaders' Guide
- Methods
- Tools
- Teams and Other Human Factors
- Philosophy
- Definitions
Scattergram or Scatterplot
A Scatterplot or Scattergram searches for a relationship netween two variables; the varibles can be related to causes or effects. Data is gathered in pairs--the first plotted on the X-axis and the second on the Y-axis. Then the intersection of the two is marked by making a dot. In enumerative statistics, this is known as correlation and is actually assigned a coefficient of strength of relationship (not causation).A Scatterplot can be constructed in MS Excel by using Insert-->All Chart Types-->Scatter.
An example from SPC for Excel:
