Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Front

What does a linear relationship in a scatter plot indicate?

Back

A linear relationship indicates that as one variable increases or decreases, the other variable does so in a consistent manner, forming a straight line when graphed.

Front

What is a cluster in a scatter plot?

Back

A cluster is a group of data points that are closely packed together in a specific area of the graph.

Front

What does the slope of a line in a scatter plot represent?

Back

The slope represents the rate of change between the two variables; it shows how much one variable changes for a unit change in the other variable.

Front

What is a positive correlation in a scatter plot?

Back

A positive correlation means that as one variable increases, the other variable also tends to increase.

Front

What is a negative correlation in a scatter plot?

Back

A negative correlation means that as one variable increases, the other variable tends to decrease.

Front

What does it mean if a scatter plot has no correlation?

Back

No correlation means there is no discernible relationship between the two variables; the data points are scattered randomly.

Front

How can you identify clusters in a scatter plot?

Back

Clusters can be identified by looking for areas where data points are densely packed together compared to other areas.

Front

What is the significance of outliers in a scatter plot?

Back

Outliers are data points that fall far away from the other points; they can indicate variability in the data or errors in measurement.

Front

What does a strong positive correlation look like in a scatter plot?

Back

A strong positive correlation appears as a tight cluster of points that slope upwards from left to right.