16 6605

17 8932

18 8506

19 7349

20 6458

21 5974

17 8932

18 8506

19 7349

20 6458

21 5974

16 6605

17 8932

18 8506

19 7349

20 6458

21 5974

17 8932

18 8506

19 7349

20 6458

21 5974

Find the equation of the regression line. X: 0, 2, 1, 4, 8 y: 6, 5, 4, 0, 6

Y = 1.92771x + 1.67470

_____

y = βx + α

For your numbers, I get

∑x = 56, ∑y = 118,

∑xy = 1208, ∑x^{2} = 578, n = 6

β = (n∑xy - ∑x∑y)/(n∑x^{2} - (∑x)^{2}) = 640/332

α = (∑x^{2}∑y - ∑x∑xy)/(n∑x^{2} - (∑x)^{2}) = 556/332

_____

y = βx + α

For your numbers, I get

∑x = 56, ∑y = 118,

∑xy = 1208, ∑x

β = (n∑xy - ∑x∑y)/(n∑x

α = (∑x

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