Scatter Plots and Lines of Best Fit Review

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship of two data sets.

Front

What is a cluster in a scatter plot?

Back

A cluster is a group of points that are close together.

Front

What does a line of best fit represent?

Back

A line of best fit represents the trend of the data points in a scatter plot.

Front

What type of correlation indicates that as one variable increases, the other also increases?

Back

Positive correlation.

Front

What type of correlation indicates that as one variable increases, the other decreases?

Back

Negative correlation.

Front

What does it mean if there is no correlation in a scatter plot?

Back

It means there is no apparent relationship between the two variables.

Front

How can you determine the line of best fit visually?

Back

The line of best fit should pass as close as possible to the majority of the data points.

Front

What is the purpose of a line of best fit?

Back

To make predictions about one variable based on the other.

Front

What is an outlier in a scatter plot?

Back

An outlier is a point that is far outside the main cluster of points.

Front

What does it mean if a scatter plot has a positive correlation?

Back

It means that as one variable increases, the other variable tends to increase as well.