Properties of the Correlation Coefficient Worksheet with Answer Key

What's on the worksheet

1. Find the new correlation coefficient after each change to the data.
   x \to 0.62xy \to y - 150x \to -xy \to 2000 - yx \to -3x and y \to -\dfrac{y}{4}
2. Say what is wrong with each student statement about r, or say it is correct.
3. Elena's pea pods: use r for pod length and peas, and what happens with a unit change.
4. Hannah's skate rentals: relate rentals to temperature and the value of r.
5. Compare two mackerel studies that use different units for length and mass.
6. Yuna's runners: find r for weekly kilometers and best 5 km time.