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 choicesHide answer 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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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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