Decide whether a scatter plot suggests a linear association

Problem

Does this scatter-plot description suggest a linear association: points fall close to an upward sloping straight band?

Your answer

Show answer choicesAnswer choices Work through the mathematics first, then compare your reasoning.Select the answer that matches your work.

A No, an upward-sloping band means the association is negative because the points are spread out instead of exact. B Yes, the points suggest an association, but it is nonlinear because scatter plots are only linear when all points fall exactly on one line. C Yes, the points stay close to an upward-sloping straight band, so the association is positive and linear. D No, the points are increasing, but that only shows a positive pattern and does not suggest a linear association.

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Revisit a weak spot without repeating one problem.

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Decide whether a scatter plot suggests a linear association

Take your practice with you.

Revisit a weak spot without repeating one problem.

Hint

Solution walkthrough

Check the form

Check the direction

Combine form and direction

State the decision

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