6.2 - Scatter Plots and Trend Lines

Front

What is a scatter plot?

Back

A graph that shows the relationship of two data sets.

Front

What type of association indicates that as one variable increases, the other variable also increases?

Back

Positive association.

Front

What type of association indicates that as one variable increases, the other variable decreases?

Back

Negative association.

Front

What does it mean if there is no association in a scatter plot?

Back

There is no discernible relationship between the two variables.

Front

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

Back

The points trend upwards from left to right.

Front

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

Back

The points trend downwards from left to right.

Front

What is a trend line?

Back

A line that shows the general direction of a data set in a scatter plot.

Front

What does a trend line indicate in a scatter plot?

Back

It indicates the overall pattern or direction of the data.

Front

If a scatter plot shows a cluster of points with no clear trend, what type of association is present?

Back

No association.

Front

What is the purpose of using scatter plots in data analysis?

Back

To visually represent the relationship between two quantitative variables.