q1: calculate the correlation coefficient from the following data. X Y 9 15 8 16 7 14 6 13 5 11 4 12 3 10 2 8 1 9 Q2: find linear regression from the following data. X Y 1 3 2 7 3 10 4 12 5 14 6 17 7 20 8 24
Added by Jill L.
Step 1
X Y 9 15 8 16 7 14 6 13 5 11 4 12 3 10 2 8 1 9 Mean of X = (9+8+7+6+5+4+3+2+1)/9 = 5 Mean of Y = (15+16+14+13+11+12+10+8+9)/9 = 12 Standard deviation of X = sqrt(((9-5)^2 + (8-5)^2 + (7-5)^2 + (6-5)^2 + (5-5)^2 + (4-5)^2 + (3-5)^2 + (2-5)^2 + Show more…
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