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 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 'no association' mean in the context of a scatterplot?

Back

'No association' means that there is no discernible relationship between the two variables being plotted.

Front

What is an outlier in a scatterplot?

Back

An outlier is a data point that differs significantly from other observations in the dataset, often appearing far away from the trend of the other points.

Front

How can you identify an outlier in a scatterplot?

Back

An outlier can be identified as a point that lies far away from the cluster of other points in the scatterplot.

Front

What is correlation in the context of scatterplots?

Back

Correlation refers to the degree to which two variables move in relation to each other, which can be positive, negative, or none.

Front

What does a negative correlation look like on a scatterplot?

Back

A negative correlation appears as a downward slope from left to right, indicating that as one variable increases, the other decreases.

Front

What does a positive correlation look like on a scatterplot?

Back

A positive correlation appears as an upward slope from left to right, indicating that as one variable increases, the other also increases.

Front

What is the purpose of using scatterplots?

Back

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