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7. 7. The following 12 data pairs relate variable xi, the amount of fertilizer, to variable...
7.
7. The following 12 data pairs relate variable xi, the amount of fertilizer, to variable Yi, the amount of wheat harvested:
x: 30 30 30 50 50 50 70 70 70 90 90 90
Y: 9 11 14 12 14 23 19 22 31 29 33 35
such that :
∑x = 720 ∑y = 252 , ∑ xy =17240, ∑x2 =49200, ∑y2 = 6228
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7. The following 12 data pairs relate variable xi, the amount of fertilizer, to variable Yi,...
7. The following 12 data pairs relate variable xi, the amount of
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30 50 50 50 70 70 70 90 90 90 Y: 9 11 14 12 14 23 19 22 31 29 33 35
such that : ∑x = 720 ∑y = 252 , ∑ xy =17240, ∑x2 =49200, ∑y2 = 6228
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