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【简答题】
Complete each of the following sentences wilh the proper form of the word given in bracket. (save) When the doctor returned from America. he used his _____to buy a flat in Beijing. 2. (scholar) My sister used to be an A student at the university; she won a ________ every year. 3. (cost) The old woman insisted that the dress was too ______ and she offered to pay half of the oroginal price. 4. (disturb)The _______ news that her husband had disappeared kept her awake all night. 5. (minor) A________of the students wanted a dance, but the majority voted for a picnic.
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参考答案:
举一反三
【单选题】(127~128题共用备选答案)
A.
均数
B.
几何均数
C.
中位数
D.
标准差
E.
百分位数 某资料服从对数正态分布,描述其集中趋势最合适的指标是
【判断题】salt and pepper
A.
正确
B.
错误
【单选题】- Could you pass me the salt and pepper? - _______.
A.
Sorry, I didn't know what you mean.
B.
Ok, here you are.
C.
No, I won't.
D.
I don't know.
【多选题】下列说法正确的有
A.
集中趋势指标与离散趋势指标结合起来才能全面描述数值变量资料的特征
B.
两组资料均数相近、单位相同,标准差越大,说明均数的代表性越差
C.
两组资料的均数相差较大,比较两组资料的离散趋势,要比较变异系数
D.
变异系数只适用于对称分布资料尤其是正态分布资料
E.
方差和标准差的意义是一样的
【简答题】A.均数 B.几何均数 C.中位数 D.标准差 E.百分位数 某资料服从对数正态分布,描述其集中趋势最合适的指标是
【单选题】________________ it with salt and pepper.
A.
season
B.
stir
C.
chop
D.
melt
【多选题】Parliatment, the law- body of British, consists of _________, _________ and _________.
A.
the Crown
B.
the House of Lords
C.
the Cabinet
D.
the House of Commons
【单选题】(133~134题共用备选答案)
A.
均数
B.
几何均数
C.
中位数
D.
标准差
E.
百分位数 某资料服从对数正态分布,描述其集中趋势最合适的指标是
【简答题】Put the salt and pepper shakers _______________.
【单选题】下列关于均数的描述正确的是
A.
均数用来描述一组变量值的离散程度
B.
均数不适用于呈正态分布的资料
C.
均数只能反映数据集中趋势,对服从正态分布的资料,应把均数与离散趋势指标标准差结合起来,可全面地反映其分布的特征
D.
均数用来描述结果的变异
E.
均数适用于偏态分布的数据
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