
teorver2
Quiz
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Mathematics
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University
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Practice Problem
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Medium
Lala Huseynova
Used 2+ times
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7 questions
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1.
MULTIPLE SELECT QUESTION
10 mins • 1 pt
Задается функция плотности равномерного распределения при . Найти дисперсию распределения.
.
b-a
a+b
1
2.
MULTIPLE SELECT QUESTION
10 mins • 1 pt
Плотность распределения непрерывной случайной величины X в интервале (0;1) равна , вне этого интервала. Найти математическое ожидание величины f(x)=x+0,5. Найти математическое ожидание
2
2
3.
MULTIPLE SELECT QUESTION
10 mins • 1 pt
По какой из нижеследующих формул вычисляется дисперсия непрерывной случайной величины.
4.
MULTIPLE SELECT QUESTION
10 mins • 1 pt
Непрерывная случайная величина задана фукнкцией распределения F(x)=
. найти D(x).
4
5.
MULTIPLE SELECT QUESTION
10 mins • 1 pt
Если случайная величина xзадана плотностью распределения
. Найти М(x) , D(x).5:5
3,4
6.
MULTIPLE SELECT QUESTION
10 mins • 1 pt
Случайная величина X задана интегральной функцией F(X)= при Найти вероятность что величина попадет в (2:5).
0,251
0,234
0,345
0
7.
MULTIPLE SELECT QUESTION
10 mins • 1 pt
дана интегральная функция
Найти дисперсию X на интервале (0:5)
5
0
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