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 relationship in a scatterplot?

Back

A linear relationship is when the data points can be approximated by a straight line.

Front

What is a non-linear relationship in a scatterplot?

Back

A non-linear relationship is when the data points do not follow a straight line and may curve or cluster in a different pattern.

Front

What does the strength of a relationship in a scatterplot refer to?

Back

The strength of a relationship refers to how closely the data points cluster around a line or curve. Strong relationships have points that are close to the line, while weak relationships 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 cluster.

Front

How can you identify a strong positive trend in a scatterplot?

Back

A strong positive trend is identified when the points rise steeply from left to right, indicating a strong correlation between the two variables.

Front

How can you identify a weak negative trend in a scatterplot?

Back

A weak negative trend is identified when the points slightly decline from left to right but are more spread out, indicating a weak correlation.