Bivariate Data

Front

What is bivariate data?

Back

Bivariate data involves two variables and is used to determine the relationship between them.

Front

What is a scatterplot?

Back

A scatterplot is a graph that displays values for two variables for a set of data.

Front

What is an outlier in a scatterplot?

Back

An outlier is a point that is far outside the main cluster of points/ordered pairs.

Front

What does a cluster in a scatterplot represent?

Back

A cluster is a group of points that are close together.

Front

What does a positive association in a scatterplot 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 scatterplot indicate?

Back

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

Front

What does 'no association' mean in the context of bivariate data?

Back

No association means there is no discernible relationship between the two variables.

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatterplot.

Front

How do you determine the equation of a line of best fit?

Back

The equation can be determined using statistical methods such as linear regression.

Front

What is the equation of the line of best fit for the data: income earned by lawn companies vs. number of yards mowed?

Back

y = 30x.