Scatterplot relationship

Untimed practice

Question 1

A city habitat team tested several small changes to public planting sites. The displays report separate parts of the pilot: before-and-after pollinator counts at three parks, visits to native and introduced flowers, weekly seedling survival, shade and soil temperature, and moisture readings for two treatments. The team expected added shade to help soil retain moisture. Because locations were not randomly assigned to every condition, the report treats the patterns as evidence for further testing rather than proof that any one treatment caused every difference.

Which conclusion is best supported by the scatterplot?

AAcross the seven sites, higher shade percentages consistently accompanied higher midday soil temperatures. BShade caused the midday soil temperatures to remain within the displayed range. CAcross the seven sites, higher shade percentages consistently accompanied lower midday soil temperatures. DAcross the seven sites, the plot shows no clear upward or downward association between shade percentage and midday soil temperature; it also cannot establish causation.

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