Positive, Negative & No -Correlations

Front

What is a correlation?

Back

A statistical measure that describes the extent to which two variables change together.

Front

What are the types of correlation?

Back

Positive correlation, negative correlation, and no correlation.

Front

What does a positive correlation indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative correlation indicate?

Back

As one variable increases, the other variable decreases.

Front

What does no correlation mean?

Back

There is no predictable relationship between the two variables.

Front

What is a scatter plot?

Back

A graph that shows the relationship of two data sets.

Front

How can you identify a positive correlation in a scatter plot?

Back

The points on the scatter plot slope upwards from left to right.

Front

How can you identify a negative correlation in a scatter plot?

Back

The points on the scatter plot slope downwards from left to right.

Front

What does a trend line in a scatter plot represent?

Back

It shows the general direction that a group of points seems to be heading.

Front

What is the purpose of using a trend line?

Back

To make predictions about one variable based on the other.