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South Africa: choose your country
Grade 8 maths · O.10 · Bivariate data

Spot the outlier in a scatter plot

An outlier is a point far away from the other points. Give its y-value.

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  1. A scatter plot shows these points: (1, 45), (2, 47), (3, 72), (4, 43), (5, 41), (6, 37), (7, 38). One point is an outlier. What is its y-value?

    Answer: 72

  2. A scatter plot shows these points: (1, 61), (2, 56), (3, 60), (4, 63), (5, 53), (6, 101), (7, 65). One point is an outlier. What is its y-value?

    Answer: 101

  3. A scatter plot shows these points: (1, 48), (2, 11), (3, 47), (4, 51), (5, 42), (6, 41), (7, 50). One point is an outlier. What is its y-value?

    Answer: 11

Tip: An outlier is a point far away from the other points. Give its y-value.

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