The Correlation Coefficient Worksheet with Answer Key

What's on the worksheet

1. Six sets of paired data have these correlation coefficients:
2. For each pair of variables, measured on many individuals, say whether you would expect r to be positive, negative or near 0, and why.
3. Without technology, decide for each data set whether r = 1, r = -1, r cannot be found, or none of these.
   (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. A library recorded, on five weekdays, the hours it was open and the number of books borrowed (made-up data), as pairs (hours, books):
5. Two weather stations each recorded, on six summer days, the hours of sunshine and the highest temperature in degrees Celsius (made-up data), as…
6. A town counted its public charging points for electric cars at the end of each year from 2016 to 2025.