Q16- Find the Standard Deviation Sx and Sy then find the Sample Covariance Sxy & Correlation Coefficient rxy for the 2 samples Xi & Yi i | Xi | Yi 1 | 2.0 | 22 2 | 2.2 | 28 3 | 2.5 | 32 4 | 3.6 | 24 5 | 3.1 | 27 Sx = Sy = Sxy = rxy = (Note: 1 point for writing the formulae and replacing the values).
Added by Maria P.
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Step 1
Mean of Xi (X̄) = (20 + 2 + 28 + 3 + 32 + 4 + 24 + 5 + 27) / 9 = 145 / 9 = 16.1111 Mean of Yi (Ȳ) = (22 + 2.2 + 28 + 2.5 + 32 + 3.61 + 24 + 3.1 + 27) / 9 = 144.41 / 9 = 16.0456 Show more…
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