Scatterplots

Front

What is a scatterplot?

Back

A scatterplot is a graphical representation of two variables, showing the relationship between them using points on a Cartesian plane.

Front

What does a positive linear association in a scatterplot indicate?

Back

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

Front

What does a negative linear association in a scatterplot indicate?

Back

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

Front

What does it mean if there is no apparent association in a scatterplot?

Back

It means that there is no clear relationship between the two variables being plotted.

Front

How can you predict values using a scatterplot?

Back

You can predict values by observing the trend in the scatterplot and estimating the value of one variable based on the value of the other.

Front

What is the purpose of collecting data for a scatterplot?

Back

The purpose is to visually analyze the relationship between two quantitative variables.

Front

What is the significance of the line of best fit in a scatterplot?

Back

The line of best fit summarizes the trend of the data points and can be used for making predictions.

Front

How do you determine the strength of a relationship in a scatterplot?

Back

The strength of a relationship is determined by how closely the data points cluster around the line of best fit.

Front

What is an example of a positive linear association?

Back

An example is the relationship between the number of hours studied and test scores, where more study hours generally lead to higher scores.

Front

What is an example of a negative linear association?

Back

An example is the relationship between the number of absences and final exam scores, where more absences typically lead to lower scores.