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Unformatted text preview: 7. 1 ) )( ( 1---= = n Y Y X X S i n i i XY Sample covariance of X and Y 8. 2 ) ( ) )( ( X X Y Y X X b i i i---= Sample regression coefficient of Y on X 9. = = =----= 5 1 2 2 5 1 5 1 ) ( ) ( ) )( ( i i i i i i i XY Y Y X X Y Y X X r Sample Correlation coefficient between X and Y...
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This homework help was uploaded on 04/22/2008 for the course ECON 320 taught by Professor Martin during the Spring '08 term at Allegheny.
- Spring '08