# calculate rank correlation  coefficient x : 60  30  37  30  42  37  55  45  y : 50  25  33  27  40  33  50  42

Dear Student,

 X Y R1 R2 D D2 60 50 1 1.5 $-0.5$ 0.25 30 25 7.5 8 $-0.5$ 0.25 37 33 5.5 5.5 0 0 30 27 7.5 7 0.5 0.25 42 40 4 4 0 0 37 33 5.5 5.5 0 0 55 50 2 1.5 0.5 0.25 45 42 3 3 0 0 $\sum {D}^{2}=1$

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