The Correlation Coefficient Worksheet with Answer Key

What's on the worksheet

1. Match six values of r to descriptions of paired data.
2. Say whether r should be positive, negative or near 0 for each pair of variables, and why.
3. Decide for each data set whether r is 1, negative 1, cannot be found or something else.
   (1, 7), (2, 5), (3, 3), (4, 1)(2, 4), (2, 6), (2, 9)(0, 3), (5, 13), (10, 23)(1, 2), (2, 4), (3, 8), (4, 16)(−2, 5), (0, 5), (3, 5)
4. Library hours and books borrowed: find and interpret r for five weekdays.
5. Two weather stations: compare sunshine hours and the highest temperature.
6. Public charging points by year: find r and decide how to read it.