IXL - Outliers in scatter plots (Algebra 1 practice)

The two scatter plots below show the same data set. Choose the scatter plot in which the outlier is highlighted.

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question

The two scatter plots below show the same data set. Choose the scatter plot in which the outlier is highlighted.

key idea

An outlier is an extreme point in a data set that is separated from all other points.

There is no specific formula defining outliers. However, they are still important to understand when performing a statistical analysis. Just one outlier can have a drastic effect on the correlation or the least squares regression line.

solution

To choose the correct scatter plot, find the outlier. Look for a point that is separated from all other points in the data set.

The highlighted point is the outlier. So, this is the correct scatter plot.

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