Question
x 1 2 3 4 5
y 14 18.9 14.4 19.6 20

 

∑ x = 15 ; ∑ y = 86.9 ; ∑ x 2 = 55 ; ∑ y 2 = 1544.73 ; ∑ x y = 273.4

Find r2 for the data

 

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