问题 问答题

某中学高三年级有三个班,高考前有一个免试保送升学名额,分别来自三个班的候选人的成绩如下:

请选用不同的综合方法,帮助学校领导做出决策,决定保送对象,并评价其合理性。

答案

参考答案:

按照标准分计算应该报送丙生,因为各科成绩的难易程度不同,分散程度也不同,各门学科的成绩分数不等价,亦即数据是不同质的,这时应用总和分数不够科学,科学的方法应该使用Z分数合成。从Z分数可知,丙虽然有两门课低于平均数,差别也小,总之成绩较稳定且在分布较高处,而甲和乙则不同,可见应用Z分数更趋合理。

单项选择题 A1/A2型题
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小题1:From "Elite Lessons" you can learn _____.

A.how to teach lessons in French or English

B.what the largest guitar contest in Canada is

C.more information about the Drummer Contest

D.skill in drumming that only a few people possess小题2:Since James is weak in French reading comprehension he may choose _____.

A.elite Lessons

B.private Tutoring

C.customized Tutoring

D.basic Lessons for Beginners小题3:How much shall you pay for a basic guitar lesson?

A.$14 an hour

B.$15 an hour

C.$19 an hour

D.$25 an hour小题4:The article can be found in _____.

A.daily news

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C.telephone directories

D.classified advertisements