Use for Homework on covariance and correlation

Use for Homework on covariance and correlation -...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
X Y X^2 Y^2 x-xbar y-ybar 1 62 132 3844 17424 -4.42 -2.38 2 68.5 139 4692.25 19321 2.08 4.62 3 63.5 124 4032.25 15376 -2.92 -10.38 4 72 146 5184 21316 5.58 11.62 5 64.5 120 4160.25 14400 -1.92 -14.38 6 70 158 4900 24964 3.58 23.62 7 66.5 141.5 4422.25 20022.25 0.08 7.12 8 67.5 163 4556.25 26569 1.08 28.62 9 68 126 4624 15876 1.58 -8.38 10 66.5 136 4422.25 18496 0.08 1.62 11 65.5 116 4290.25 13456 -0.92 -18.38 12 67 134 4489 17956 0.58 -0.38 13 62 111.5 3844 12432.25 -4.42 -22.88 Sums 863.5 1747 57460.75 237608.5 104.42 0 Means 66.42 134.38 Variance X 8.7 Standard Dev X 2.95 Variance Y 236.55 Standard Dev Y 15.38 computational definitional r 0.67 0.67 sum of (x-xbar)(y-ybar) 363.63 N 13 N-1 12 1/N-1 0.08 SDX * SDY 45.37 squareroot 6.74
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
(x-xbar)^2 (y-ybar)^2
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: (x-xbar)(y-ybar) X*Y 19.56 5.69 10.55 8184 4.31 21.3 9.59 9521.5 8.54 107.84 30.36 7874 31.1 134.92 64.78 10512 3.7 206.92 27.66 7740 12.79 557.69 84.47 11060 0.01 50.63 0.55 9409.75 1.16 818.84 30.82 11002.5 2.49 70.3-13.22 8568 0.01 2.61 0.12 9044 0.85 337.99 16.97 7598 0.33 0.15-0.22 8978 19.56 523.71 101.22 6913 104.42 2838.58 363.63 116404.75 Sum of deviation 363.63 covariance 30.3 COMPUTATIONAL sum(XY) 116404.75 sum(X)sum(Y) 8926.24 [sum(X)sum(Y)]/N 686.63 DEFINITIONAL Sum(x-xbar)(y-ybar) 363.63...
View Full Document

This note was uploaded on 04/18/2008 for the course PSYCH 320 taught by Professor Wichman during the Spring '08 term at Ohio State.

Page1 / 2

Use for Homework on covariance and correlation -...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online