Data on the relationship between plant age and dry matter in the stalk are given in the Table. X (Age XXXXXXXXXX18 Y (Dry matter, % XXXXXXXXXX51 51 i) Express the relationship between the exhausted...

Data on the relationship between plant age and dry matter in the stalk are given in the Table.

X (Age) 4 6 8 10 12 14 16 18

Y (Dry matter, %) 24 28 35 48 44 49 51 51

i) Express the relationship between the exhausted age and dry matter level with the regression equation (Ŷ = aX + b).

ii) ii) Using the obtained equation, estimate what the dry matter% of plants with a age of 22 weeks will be.

iii) iii) By drawing the skater diagram, find the correlation coefficient and interpret the found values.