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 positive association in a scatter plot indicate?

Back

A positive association indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative association in a scatter plot indicate?

Back

A negative association indicates that as one variable increases, the other variable tends to decrease.

Front

What is no association in a scatter plot?

Back

No association means there is no discernible relationship between the two variables; changes in one do not affect the other.

Front

What is a trend line?

Back

A trend line is a straight line that best represents the data on a scatter plot, showing the general direction of the data points.

Front

What is a line of best fit?

Back

A line of best fit is a line drawn through the scatter plot that best represents the data points, minimizing the distance from the points to the line.

Front

What does a nonlinear association mean?

Back

A nonlinear association means that the relationship between the two variables does not follow a straight line; it may curve or change direction.

Front

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

Back

A positive linear association is identified by data points that slope upwards from left to right.

Front

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

Back

A negative linear association is identified by data points that slope downwards from left to right.

Front

What is the purpose of a scatter plot?

Back

The purpose of a scatter plot is to visually display the relationship between two variables and to identify any patterns or correlations.