Example 18 - Yola

Calculate the correlation coefficient! r= ∑ i=1 n ( x i - ̅ x )( y i - ̅ y ) ∑ i=1 n x i - ̅ x 2 ∑ i=1 n y i - ̅ y 2 . Use calculator’s . STAT. functions to speed up this process by automating the basic calculations for you . i . x i . y i . x i - ̅ x . y i - ̅ y ( x i - ̅ x )( y i - ̅ y ) x i - ̅ x 2 . y i - ̅ y 2 . n . L 1 ... ................
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