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 is a 'Line of Best Fit'?

Back

A 'Line of Best Fit' is a straight line that best represents the data on a scatterplot, showing the general direction of the data points.

Front

How can you identify no association in a scatterplot?

Back

No association is identified when the points on the scatterplot do not show any clear pattern or trend.

Front

What does it mean if a scatterplot shows a nonlinear association?

Back

A nonlinear association means that the relationship between the two variables cannot be accurately represented by a straight line.

Front

What is the purpose of using a scatterplot?

Back

The purpose of using a scatterplot is to visually display the relationship between two quantitative variables and to identify trends or patterns.

Front

How do you interpret the slope of a Line of Best Fit?

Back

The slope of a Line of Best Fit indicates the rate of change between the two variables; a positive slope means an increase, while a negative slope means a decrease.

Front

What does it mean to make a prediction using a scatterplot?

Back

Making a prediction using a scatterplot involves estimating the value of one variable based on the value of another variable, using the trend shown in the scatterplot.

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are data points that fall far away from the other points in the scatterplot; they can indicate anomalies or errors in data collection.