Scatterplots Flashcard Review

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?

Back

A linear association is when the data points in a scatterplot can be approximated by a straight line.

Front

What is a non-linear association?

Back

A non-linear association is when the data points in a scatterplot do not follow a straight line pattern.

Front

What is the strength of an association in a scatterplot?

Back

The strength of an association refers to how closely the data points cluster around a line of best fit. Strong associations have points that are close together, while weak associations have points that are more spread out.

Front

What is a cluster in a scatterplot?

Back

A cluster is a group of points that lie close together in a scatterplot.

Front

What is an outlier in a scatterplot?

Back

An outlier is a data point that is significantly different from the other points in the dataset, often lying far away from the trend.

Front

How can you determine the direction of a trend in a scatterplot?

Back

The direction of a trend can be determined by observing whether the points slope upwards (positive trend) or downwards (negative trend) as you move from left to right.

Front

What does it mean if a scatterplot has no association?

Back

If a scatterplot has no association, it means there is no discernible pattern or relationship between the two variables.