
F.5 CH12 續離差 Quiz
Quiz
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
蕭宇倫先生 Xiao Alan
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
大吉糖廠有兩部機器A和B,用來生產一公斤裝的砂糖。品質控制員從每部機器抽樣檢查,分別量度其生產的10包砂糖的重量,而所量得的重量(以kg為單位)如下。判斷哪部機器較精準。
A
B
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下表所示為中五甲班10名學生在數學科的兩次測驗的分數。學生J在哪次測驗的表現較佳?
測驗1
測驗2
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
某隊隊員年齡的平均數是24。俊傑是其中一名隊員,他的年齡是28而他的標準分是2。求隊員年齡的標準差。
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
某隊隊員年齡的平均數是24。俊傑是其中一名隊員,他的年齡是28而他的標準分是2。志新是另一名隊員。若志新的標準分是-0.5,求志新的年齡。
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
志豪和家儀在一次英文科測驗的分數分別是53和68。志豪和家儀在這次測驗的標準分分別是-0.8和0.7。求這次測驗分數的平均數。
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
志豪和家儀在一次英文科測驗的分數分別是53和68。志豪和家儀在這次測驗的標準分分別是-0.8和0.7。求這次測驗分數的標準差。
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
某農場內800個番茄的重量符合正態分佈,其中平均數是100g而標準差是5g。求重量在下列範圍內的番茄所佔的百分數。(在95g與110g之間)
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