
夜輔數學測驗
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
黃瀚毅老師 黃瀚毅老師
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18 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
有三組學生,各包括4、3、2人,其平均身高分別為164、169、170公分,則這三組學生的平均身高為多少公分?
166
167
168
169
170
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
列五個直方圖表示的資料,何者的標準差最大?
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
若有一組變數x1,x2,…,xn,且變數y與x的關係滿足2y = 3x + 6。若μx = 16,則μy =?
22
48
54
24
27
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
已知某校老師玩過「寶可夢」的比率為r1,而學生玩過的比率為r2,其中r1不等於r2。由下列選項中的資訊,請選出可以判定全校師生玩過「寶可夢」的比率之選項。
全校老師與學生比率
全校老師人數
全校學生人數
全校師生人數
全校師生玩過「寶可夢」人數
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
設x1,x2,x3,x4,x5,x6的算術平均數為4,標準差為3,則x12 + x22 + x32 + x42 + x52 + x62 =?
120
130
135
140
150
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
某貨品為避免因成本變動而造成售價波動太過劇烈,當週售價相對於前一週售價的漲跌幅定為當週成本相對於前一週成本的漲跌幅的一半。例如下表中第二週成本上漲100%,所以第二週售價上漲50%。依此定價方式以及下表的資訊,試選出正確的選項
120=x<y<180
120<x<y<180
120<x<180<y
120=x<180<y
x<120<y<180
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
若有一組資料x1、x2、x3、x4及4,其μ = 8,標準差 = 6。若將資料4除去,剩下四個數的標準差為σ,則下列哪一個選項是正確的?
3 ≤ σ < 4
4 ≤ σ < 5
5 ≤ σ < 6
6 ≤ σ < 7
7 ≤ σ < 8
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