# Types of Correlation

#### Positive Correlation

Positive correlation occurs when an increase in one variable increases the value in another.

The line corresponding to the scatter plot is an increasing line.

#### Negative Correlation

Negative correlation occurs when an increase in one variable decreases the value of another.

The line corresponding to the scatter plot is a decreasing line.

#### No Correlation

No correlation occurs when there is no linear dependency between the variables.

#### Perfect Correlation

Perfect correlation occurs when there is a funcional dependency between the variables.

In this case all the points are in a straight line.

#### Strong Correlation

A correlation is stronger the closer the points are located to one another on the line.

#### Weak Correlation

A correlation is weaker the farther apart the points are located to one another on the line.