계량경제학 회귀증명 식 증명
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게시물 수정 , 삭제는 로그인 필요
sum _{n=1} ^{n} ( CHI _{i} - {bar{CHI}} )( UPSILON _{i} - {bar{UPSILON}} )= sum _{n=1} ^{n} ( CHI _{i} - {bar{CHI}} ) UPSILON _{i} = sum _{n=1} ^{n} CHI _{i} ( UPSILON _{i} - {bar{UPSILON}} )= sum _{n=1} ^{n} CHI _{i} UPSILON _{i} -n {bar{CHI}} {bar{UPSILON}}
증명해주세요!
sum _{n=1} ^{n} ( CHI _{i} - {bar{CHI}} )( UPSILON _{i} - {bar{UPSILON}} )= sum _{n=1} ^{n} ( CHI _{i} - {bar{CHI}} ) UPSILON _{i} = sum _{n=1} ^{n} CHI _{i} ( UPSILON _{i} - {bar{UPSILON}} )= sum _{n=1} ^{n} CHI _{i} UPSILON _{i} -n {bar{CHI}} {bar{UPSILON}}
증명해주세요!