
Шамалар
Authored by ndqsv7hxvt apple_user
Mathematics
9th - 12th Grade
Used 1+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Кездейсоқ шаманың мәндері шектеулі немесе санаулы болса, ол қандай шама?
Үздіксіз
Дискретті
Тұрақты
Айнымалы
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Дискретті кездейсоқ шаманың үлестірім заңын көрсету тәсілі:
Графикпен
Геометриялық түрде
Кестемен немесе формуламен
Тек теңдеу арқылы
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Математикалық күтім E[X] нені сипаттайды?
Орташа мәнін
Шаманың өзгергіштігін
Мүмкін болатын ең үлкен мәнін
Ықтималдықтар қосындысын
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Математикалық күтімнің формуласы:
E[X]=\sum p_i^2
E[X]=\sum x_i^2
E[X]=\sum f_i/n^2
E[X]=\sum x_i p_i
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ықтималдықтардың қосындысы неге тең болуы керек?
1
0
2
Х
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Квадраттың математикалық күтімі қалай есептеледі?
М[X^2] = \sum x_i^2 p_i
М[X^2] = \sum x_i p_i^2
М[X^2] = (\sum x_i p_i)^2
М[X^2] = \sum p_i / x_i^2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Дисперсия формуласы:
D(X)=E[X]-E[X^2]
D(X)=E[X^2]-[E(X)]^2
D(X)=E[X]^2+E[X^2]
D(X)=E[X]/E[X^2]
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