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4.51 Pitchers The table shows the number of wins and the num- ber of strike-outs (SO) for 40 baseball pitchers in the major leagues
4.51 Pitchers The table shows the number of wins and the num- ber of strike-outs (SO) for 40 baseball pitchers in the major leagues in 2011. (Source: 2011 MLB PITCHING STATS, http://www .baseball-reference.com/leagues/MLB/2011-pitching-leaders.shtml, accessed via StatCrunch. Owner: IrishBlazeFighter) a. Make a scatterplot of the data, and state the sign of the slope from the scatterplot. Use strike-outs to predict wins. b. Use linear regression to find the equation of the best-fit line. Insert the line on the scatterplot using technology or by hand. c. Interpret the slope. d. Interpret the intercept and comment on it. Wins SOs Wins SOs 21 248 12 158 19 220 13 191 17 238 16 158 24 250 8 134 18 198 10 197 13 139 9 123 13 220 9 {96 14 194 11 178 16 225 14 111 11 146 14 126 21 198 11 191 12 179 14 222 13 175 9 185 15 178 15 182 16 206 16 169 13 117 11 166 19 230 12 218 13 161 13 126 16 197 17 207 16 192 13 158
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