A scatter diagram is a way of visually representing information on two variables on a graph. You can get 3 possible outcomes with scatter diagrams, these are:
- Positive correlation: Both variables increase or both variables decrease.
- Negative correlation: One variable increases while the other decreases.
- No correlation: There is no pattern that you can identify as the data is randomly spread on the graph.
Scatter diagrams are also used for estimating. Using a 'Best Fit' line you can estimate the required information using the line drawn. Below are points . . .
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