Data on the relationship between plant age and dry matter in the stalk are given in the Table. X (Age) 4 1 1 14 16 18 2 4 49 4 2 4 Y (Dry matter, %) 4 51 51 8 5 8 Express the relationship between the exhausted age and dry matter level with the regression equation (Ý = aX + b). ii) Using the obtained equation, estimate what the dry matter% of plants with a age of 22 weeks will be. iii) By drawing the skater diagram, find the correlation coefficient and interpret the found values. i) ii) iii)

Data on the relationship between plant age and dry matter in the stalk are given in the Table. X (Age) 4 1 1 14 16 18 2 4 49 4 2 4 Y (Dry matter, %) 4 51 51 8 5 8 Express the relationship between the exhausted age and dry matter level with the regression equation (Ý = aX + b). ii) Using the obtained equation, estimate what the dry matter% of plants with a age of 22 weeks will be. iii) By drawing the skater diagram, find the correlation coefficient and interpret the found values. i) ii) iii)

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter3: Functions And Graphs

Section3.3: Lines

Problem 76E

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