Types of Correlation

What does correlation show?

The strength and direction of an association between 2 or more co-variables

How are correlations plotted?

On a scattergram

How do you make a scattergram?

1 co-variable forms the x-axis and the other the y-axis and each point on the graph is the x and y position of each co-variable.

What are the 3 different types of correlation?

Positive correlation, negative correlation and zero correlation.

What’s a positive correlation?

As 1 co-variable goes up, the other also goes up.

What’s a negative correlation?

As 1 co-variable goes up, the other goes down.

What’s a zero correlation?

There’s no relationship between the co-variables.