Question: You used the same example in Test Your Knowledge 2 and drew the following scatter plot 55 50 45 40 35 Sales30 25 20 15

You used the same example in Test Your Knowledge 2 and drew the following scatter plot

the following scatter plot 55 50 45 40 35 Sales30 25 20

55 50 45 40 35 Sales30 25 20 15 10 Our 0 2 Advert 4A. Calculate equation of a least squares line given that 8 = 1 125 T = 38 125 , = 2 125 -78.125and 3.- -10.268

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