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Table 7. Regression Analysis of Age (Years) versus Size (Circinnference <br />at Breast Height) for Aspen with a dbh Srtrzller than 5.8 cn <br />J <br /> <br />i <br />Xi (cbh-czn) Data <br />dbh-czn <br />Yi (age-years) <br />_ 1 8.6 2.7 18 <br />2 3.5 1.1 10 <br />3 3.8 1.2 10 <br />4 6.8 2.2 15 <br />5 3.2 1.0 11 <br />Averages 5.2 1.6 12.5 <br />Analysis of Variance: Linear Regression of Y on X <br />Source SS DF PALS F Ratio <br />Regression 48.803 1 48.803 73.32 <br />Residual 1.997 3 0.666 <br />Total Corr. 50.800 4 <br />F (1, 3) = 34.12 n = 0.01 <br />2 <br />R = 0.961= 96.1 <br />n <br />Y = 5.149 + 1.958X <br />l~ <br />-40- <br />