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 association in a scatterplot indicate?

Back

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

Front

What is a nonlinear association in a scatterplot?

Back

A nonlinear association occurs when the relationship between the variables cannot be accurately represented by a straight line.

Front

How can you identify a linear relationship in a scatterplot?

Back

A linear relationship can be identified if the points in the scatterplot form a pattern that resembles a straight line.

Front

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

Back

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

Front

What is the purpose of making predictions using a scatterplot?

Back

The purpose is to estimate the value of one variable based on the known value of another variable, using the trend shown in the scatterplot.

Front

How does the age of a car relate to its value in a scatterplot?

Back

Typically, as the age of a car increases, its value decreases, which can be represented by a negative association in a scatterplot.

Front

What is the significance of the x-axis and y-axis in a scatterplot?

Back

The x-axis represents the independent variable, while the y-axis represents the dependent variable.

Front

What does it mean to have a strong correlation in a scatterplot?

Back

A strong correlation means that the points are closely clustered around a line, indicating a strong relationship between the two variables.