Utente:Galessandroni/Grafici

$m={\frac {n\sum _{i=1}^{n}x_{i}y_{i}-\sum _{i=1}^{n}x_{i}\sum _{i=1}^{n}y_{i}}{n\sum _{i=1}^{n}x_{i}^{2}-(\sum _{i=1}^{n}x_{i})^{2}}}$

$q={\frac {\sum _{i=1}^{n}y_{i}-m\sum _{i=1}^{n}x_{i}}{n}}$