July 2022 2 39 Report
Найти математическое ожидание MX, дисперсию DX и среднеквадратичное отклонение X для дискретной случайной величины X.
[tex]X~~~~1&7~~~~~~21~~~~~25~~~~~27 \\\\P~~~~0,2~~~~0,4~~~~0,3~~~~0,1[/tex]
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