Use these data to answer Questions 2a and 2b.

a. Using either a calculator or Excel, compute the Pearson correlation coefficient.

b. Interpret the relationship between these variables using the descriptions in Table 5.2 ranging from "very weak" to "very strong." Then compute the coefficient of determination. How does your subjective analysis compare with the value of the r you calculated?

Data From Question 2a

Data From Question 2b

Data From Table 5.2

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Speed in Seconds (to complete a 50-yard swim) 21.6 Strength (no. of pounds bench- pressed) 135 23.4 213 26.5 243 25.5 167 20.8 120 19.5 134 20.9 209 18.7 176 29.8 156 28.7 177