Question: Determine and interpret the coefficient of determination, R 2 , for the clubhead speed versus distance data shown in Table 5 on page 225. By

Determine and interpret the coefficient of determination, R², for the clubhead speed versus distance data shown in Table 5 on page 225.

By Hand Approach

To compute R², we square the linear correlation coefficient, r.

Technology Approach

We will use Excel to determine R². The steps for obtaining the coefficient of determination using the TI-83/84 Plus graphing calculator, Minitab, Excel, and StatCrunch are given in the Technology Step-by-Step.

Table 5 Club-head Speed (mph) x Distance (yd) y (x, y) 100 257 (100,257) 102 264 (102,264) 103 274 (103,274) 101 266 (101,266) 105 277 (105,277) 100 263 (100,263) 99 258 (99,258) 105 275 (105,275)

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