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Statistics LibreTexts

Scatter Plots (Exercises)

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    5903

    • Exercise \(\PageIndex{1}\)

    Does the scatter plot appear linear? Strong or weak? Positive or negative?

    This is a scatterplot with several points plotted in the first quadrant. The points form a clear pattern, moving upward to the right. The points do not line up , but the overall pattern can be modeled with a line.
    Figure \(\PageIndex{4}\)

    Answer

    The data appear to be linear with a strong, positive correlation.

    Exercise 12.3.3

    Does the scatter plot appear linear? Strong or weak? Positive or negative?

    This is a scatterplot with several points plotted in the first quadrant. The points move downward to the right. The overall pattern can be modeled with a line, but the points are widely scattered.
    Figure \(\PageIndex{5}\)

    Exercise 12.3.4

    Does the scatter plot appear linear? Strong or weak? Positive or negative?

    This is a scatter plot with several points plotted all over the first quadrant. There is no pattern.
    Figure \(\PageIndex{6}\)

    Answer

    The data appear to have no correlation.