Linear Association

Front

What is a linear association?

Back

A relationship between two variables where a change in one variable results in a consistent change in the other variable.

Front

What does a positive association look like on a graph?

Back

As one variable increases, the other variable also increases, creating an upward slope.

Front

What does a negative association look like on a graph?

Back

As one variable increases, the other variable decreases, creating a downward slope.

Front

What is a scatterplot?

Back

A type of graph that shows the relationship between two numerical variables using dots to represent data points.

Front

What does it mean if a scatterplot has no association?

Back

The data points do not show any predictable pattern or relationship.

Front

How can you predict values using a trend line?

Back

By extending the trend line on a scatterplot, you can estimate values for variables not directly measured.

Front

What is a trend line?

Back

A line that best represents the data points on a scatterplot, showing the general direction of the data.

Front

What is the purpose of using a scatterplot?

Back

To visually display the relationship between two variables and identify patterns or trends.

Front

What does it mean if the points on a scatterplot are tightly clustered?

Back

It indicates a strong association between the two variables.

Front

What does it mean if the points on a scatterplot are widely spread out?

Back

It indicates a weak association between the two variables.