Multiple Choice
Which of the following statements is not typically included in the description of a scatter diagram?
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11. Correlation
Scatterplots & Intro to Correlation
Multiple Choice
Which of the following scatterplots best illustrates an outlier that is extreme in both the - and -direction?
A
A scatterplot where most points form a linear pattern, but one point is far away from the cluster both horizontally (-direction) and vertically (-direction).
B
A scatterplot where one point is far from the cluster only in the -direction, but not in the -direction.
C
A scatterplot where all points are closely clustered along a straight line with no points far from the group.
D
A scatterplot where one point is far from the cluster only in the -direction, but not in the -direction.
Verified step by step guidance1
Understand what an outlier is: an outlier is a data point that differs significantly from other observations in the dataset.
Recognize that an outlier extreme in both the x- and y-direction means the point is far away from the main cluster horizontally (x-axis) and vertically (y-axis).
Visualize the scatterplots: identify which plot has a point that is distant from the main cluster in both directions, not just one.
Eliminate options where the outlier is only far in one direction (either x or y) or where all points are closely clustered with no outliers.
Conclude that the scatterplot best illustrating an outlier extreme in both directions is the one where most points form a linear pattern but one point is far away from the cluster both horizontally and vertically.
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