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 correlation indicate in a scatterplot?

Back

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

Front

What does a negative correlation indicate in a scatterplot?

Back

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

Front

What does no correlation mean in a scatterplot?

Back

No correlation means that there is no apparent relationship between the two variables; changes in one variable do not predict changes in the other.

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 a positive correlation in a scatterplot?

Back

A positive correlation can be identified when the points on the scatterplot slope upwards from left to right.

Front

How can you identify a negative correlation in a scatterplot?

Back

A negative correlation can be identified when the points on the scatterplot slope downwards from left to right.

Front

What is the purpose of creating a scatterplot?

Back

The purpose of creating a scatterplot is to visually display the relationship between two quantitative variables.

Front

What is the significance of outliers in a scatterplot?

Back

Outliers are data points that differ significantly from other observations. They can affect the line of best fit and the overall interpretation of the data.

Front

What does it mean if a scatterplot shows a cluster of points?

Back

A cluster of points indicates that there is a concentration of data points in a particular area, suggesting a potential relationship between the variables.