Расчет: 5EHtmv - 1
x_v =
| ( x1* m1+ x2* m2+ x3* m3) |
| / n |
|
x_v =
$$x_{v}$$ = $$\frac{x1\cdot m1+x2\cdot m2+x3\cdot m3}{n}$$
| ( x1* m1+ x2* m2+ x3* m3) |
| / n |
x_v =
+
+
$$x_{v}$$ = $$\frac{m1\cdot x1}{n}+\frac{m2\cdot x2}{n}+\frac{m3\cdot x3}{n}$$
| m1* x1 |
| / n |
| m2* x2 |
| / n |
| m3* x3 |
| / n |