Fitting Linear Functions to Data Practice Test

Because $r=-0.88$, knowing elevation allows you to predict temperature exactly at any location.

Because $r=-0.88$, temperature will decrease by 0.88°C for every 1-meter increase in elevation.

There is a strong positive linear association between elevation and temperature, so higher elevations tend to have higher temperatures.

There is a strong negative linear association between elevation and temperature, so higher elevations tend to have lower temperatures, but $r$ alone does not prove elevation causes temperature to change.