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Консультация № 201857
09.12.2021, 09:02
0.00 руб.
0
1
1
Здравствуйте! Прошу помощи в следующем вопросе:
Здравствуйте! Прошу помощи в следующем вопросе:
Закон распределения случайной величины X задан функцией плотности:(ниже приложил скриншот с функцией) Найти дисперсию случайной величины.
Здравствуйте! Прошу помощи в следующем вопросе:
Закон распределения случайной величины X задан функцией плотности:(ниже приложил скриншот с функцией) Найти дисперсию случайной величины.
Обсуждение
09.12.2021, 18:23
общий
это ответ
Здравствуйте, lbvf2156!
Если закон распределения случайной величины
задан функцией плотности 
то речь идёт о нормально распределённой случайной величине, для которой среднее квадратическое отклонение 
и математическое ожидание 
Тогда искомая дисперсия составляет
Если закон распределения случайной величины
задан функцией плотности то речь идёт о нормально распределённой случайной величине, для которой среднее квадратическое отклонение и математическое ожидание Тогда искомая дисперсия составляет
5
Об авторе:
Facta loquuntur.
Facta loquuntur.
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