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【简答题】

Here is a report(成绩单) of the students’ English competition. Find the right answers to the following questions.
Items
Group One
Group Two
Group Three
Group Four
1.Answer correctly
67
71
76
78
2.Answer quickly
75
80
79
62
3.Answer humorously(幽默地)
69
68
81
77
4.Speak freely
81
83
84
85
5.Speak clearly
88
86
83
86
6.Speak loudly
90
93
91
91
7.Have good manners
79
74
75
79
8.Co-operate well
82
63
88
84
Average(平均数)
79
77
82
80
小题1:______ is the most humorous of the four groups?
A. Group One B. Group Two C. Group Three
小题2:Group Two spoke as _____ as Group Four.
A. clearly B. quickly C. freely
小题3:Group Two did worst in “______”.
A. speak freely B. have good manners C. co-operate well
小题4:In answer correctly, Group Three got _____ more marks than Group One.
A. 4 B. 5 C. 9
小题5:According to the report, which of the following is NOT true?
A. Group Three is the winner of the competition.
B. Group One did as well as Group Four in “Answer quickly”.
C. All groups did best in “Speak loudly” of all the items.

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题目标签:平均数均数
参考答案:
参考解析:
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举一反三

【多选题】几何平均数的主要用途是( )。

A.
确定组距
B.
计算众数
C.
确定组限
D.
对比率、指数等进行平均
E.
计算平均发展速度

【多选题】计算下列各项指标时,其分母需要采用平均数的有( )。

A.
流动比率
B.
应收账款周转次数
C.
总资产报酬率
D.
应收账款周转天数

【单选题】采用的平均数计算方法为( )

A.
简单算术平均
B.
调和平均
C.
加权算术平均
D.
几何平均