
高二數學隨機變數練習

Quiz
•
Mathematics
•
11th Grade
•
Hard
hiofan Wong
Used 1+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知隨機變數X的分佈列如表,若E(X)=5,則a=( )
23
4
6
12
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知隨機變數X的分佈列如表所示,則E(X)=( )
16
13
23
56
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
隨機變數X的分佈列如下:
14
13
12
23
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
小花平均七題可答對三題,現測驗卷有六題,則她答對四題,答錯兩題的概率是 ( )
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
擲一個硬幣3次,則剛好出現2個正面的概率是 ( )
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