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Covariance and Correlation ,[object Object],[object Object],[object Object]
Limitation of covariance ,[object Object],[object Object],[object Object]
Limitations of covariance ,[object Object],[object Object]
Go vary with yourself ,[object Object],[object Object]
Go vary with yourself ,[object Object],Note: I’ve written the variance of  X  as  s X      s X  because the variance is the SD squared
Go vary with yourself ,[object Object],[object Object],[object Object]
Spine-tingling moment ,[object Object]
Spine-tingling moment ,[object Object],[object Object]
Correlation ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
+    + = +         = + +       =        + =  
Correlation
Correlation ,[object Object],[object Object],[object Object]
r  = + 1 r  = - 1 r  = 0
Correlation ,[object Object],[object Object]
r  = + 1 r  = + .70 r  = + .30
Correlation ,[object Object],[object Object],[object Object],[object Object]

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Lecture08

  • 1.
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • 11. +  + = +    = + +   =    + = 
  • 13.
  • 14. r = + 1 r = - 1 r = 0
  • 15.
  • 16. r = + 1 r = + .70 r = + .30
  • 17.