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Estimate r from a scatterplot

DIFFICULTYintrostandardchallengeexam
QUESTION TYPEMix of allChange
Strong positive sign then valueStrong negative sign then valueNOWMix of allRecommended
Question 1 of 8

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Use event attendance as the explanatory variable for waste collected

Scatterplot with 10 points. The horizontal axis is event attendance (hundreds of people) and the vertical axis is waste collected (kg). The observed values of event attendance run from 19 to 39, and the observed values of waste collected run from 234 to 326. A straight path through the points rises from left to right; the vertical departures are small.203040250300event attendance(hundreds of people)waste collected (kg)
(a)1 mark

Is Pearson's \(r\) positive or negative?

(b)1 mark

Choose the correlation value that best matches the scatterplot