Question

Найти дисперсию ряда 0 1 0 8 0 4

Answer 1

$overline{X} = frac{0+1+0+8+0+4}{6} = frac{13}{6} \ D = frac{(0- frac{13}{5})^2+(1-frac{13}{5})^2 + (0-frac{13}{5})^2 + (8- frac{13}{5})^2+(0- frac{13}{5})^2+(4- frac{13}{5})^2}{6} = frac{53,96}{6} = 8 frac{5,96}{6} approx 8,99$