Math Is Fun Forum

MKNB

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Regression line

Question : The data below gives the weights (Y)  and age (X) of 10 students

X 20  21  18  29  14  15  16  20  17  20

Y 55  61  40  60  30  30  32  40  33  39 

Calculate regression line of Y on X 

Compute errors and prove the sum of errors is zero  <-  <-  <-  .