
Math 101-150
Authored by Jalal Aliyev
Mathematics
University
Used 3+ times

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50 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какое из следующих не является свойством математического ожидания
М(Х-У) =М(Х) +М(У)
М(C) = C
нет правильного ответа
М(CХ)= CМ(Х)
М(Х+У) =М(Х) +М(У)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В каком случае верно D(X+Y) = D(X)
Если Y непрерывная случайная величина.
Если X и Y независимые случайные величины.
Если Y – постоянная
Нет правильного ответа
Если X və Y дискретные случайные величины
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Дискретная случайная величина Х принимает три возможные значения:
х1=4 с вероятностью р1=05, х2=6 с вероятностью р2=0.3 и х3 с вероятностью
p3. Найти х3 зная, что М(Х)=8.
Нет правильного ответа
11
31
21
41
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
28,61
26,61
22,61
Нет правильного ответа
24,61
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6,71
8,51
10,31
7,21
Нет правильного ответа
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найти дисперсию биноминального распределения.
npq
np
nq
np+q
Нет правилъного ответа
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7
8
5
6
Нет правильного ответа.
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