Задание
Ниже приведено распределение дискретной случайной величины \(\displaystyle X\small.\)
Распределение \(\displaystyle X\)
| Значение \(\displaystyle X\) | \(\displaystyle -11\) | \(\displaystyle -7\) | \(\displaystyle -3\) | \(\displaystyle -2\) | \(\displaystyle 0\) | \(\displaystyle 2\) | \(\displaystyle 3\) | \(\displaystyle 7\) | \(\displaystyle 11\) |
| \(\displaystyle P(X=x)\) | \(\displaystyle 0{,}12\) | \(\displaystyle 0{,}18\) | \(\displaystyle 0{,}05\) | \(\displaystyle 0{,}05\) | \(\displaystyle 0{,}2\) | \(\displaystyle 0{,}05\) | \(\displaystyle 0{,}05\) | \(\displaystyle 0{,}18\) | \(\displaystyle 0{,}12\) |
Найдите математическое ожидание \(\displaystyle X\small.\)
\(\displaystyle E(X)=\)[ ]