Fituici Alina
- ASEM
- Econometrie
- 5
COpiute econometrie
Ȳ=∑yi/n x̅1=∑x1/n x̅2=∑x2/n cov(y, x1)=[∑(yi-ȳ)*(x1-x̅1)]/n cov(y, x2)=[∑(yi-ȳ)*(x2-x̅2)]/n
COpiute econometrie
Ȳ=∑yi/n x̅1=∑x1/n x̅2=∑x2/n cov(y, x1)=[∑(yi-ȳ)*(x1-x̅1)]/n cov(y, x2)=[∑(yi-ȳ)*(x2-x̅2)]/n