
數學成績與統計問題

Quiz
•
Mathematics
•
7th Grade
•
Medium
盧有仔 盧有仔
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
某班級學生的數學成績平均為80分,中位數為85分,這表示什麼?
A. 大多數學生的成績高於80分
B. 大多數學生的成績低於80分
C. 學生成績分佈對稱
D. 學生成績分佈不均
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一組數據為:12、15、18、20、22,其中位數是多少?
A. 15
B. 18
C. 20
D. 22
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一組數據為:5、7、7、8、9、9、9、10,這組數據的眾數是多少?
A. 7
B. 8
C. 9
D. 10
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
某班級五位學生的數學成績分別為:85、90、85、92、88,這五位學生的平均成績是多少?
A. 86
B. 87
C. 88
D. 89
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在市中學生田徑運動會上,參加男子跳高專案的14名運動員的成績如表所示:則這些運動員成績的中位數,眾數分別為( )
A.1.70,1.75
B.1.65,1.75
C.1.65,1.70
D.1.70,1.70
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
某公司10名職工3月份的工資如下表所示,則這10名職工3月份工資的中位數是( )
A. 5200元
B.5300元
C.5400元
D.5500元
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在一個不透明的袋中裝有若干個紅球和4個黑球,每個球除顏色外完全相同,搖勻後從中摸出一個球,記下顏色後再放回袋中,不斷重複這一過程,共摸球200次,其中有80次摸到黑球,估計袋中紅球的個數是( )
A.2
B.4
C.6
D.8
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