Scatterplots

Front

What is a scatterplot?

Back

A scatterplot is a graph that displays values for typically two variables for a set of data. Each point represents an observation in the dataset.

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 is a linear association in a scatterplot?

Back

A linear association means that the points in the scatterplot can be approximated by a straight line.

Front

What is a non-linear association in a scatterplot?

Back

A non-linear association means that the relationship between the variables cannot be accurately represented by a straight line.

Front

How can you identify the trend in a scatterplot?

Back

The trend can be identified by observing the overall direction of the points in the scatterplot.

Front

What is a trend line?

Back

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

Front

How do you make predictions using a scatterplot?

Back

You can make predictions by extending the trend line and estimating the value of one variable based on the value of the other.

Front

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

Back

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

Front

What is the purpose of using scatterplots in data analysis?

Back

Scatterplots are used to visually assess the relationship between two quantitative variables.