she is sorry for her （） grades f打头的词语

佩卿2022-10-04 11:39:543条回答

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G的数学题,Amy's grade was the 90th percentile of the 80 grades f G的数学题, Amy's grade was the 90th percentile of the 80 grades for her class,of the 100 grades from another class,19 were higher than Amy's,and the rest were lower,if no other grade was the same as Amy's grade,then Amy's grade was what percentile of the two classes combined? 题意不懂, 那这个题目是讲什么啊？ 不是求的百分数啊，答案是85th qq一闲人1年前4: lixiaowei321 共回答了21个问题 | 采纳率90.5%

答案是不是
(80*0.1+19)/(100+80)=0.15
即15%?
噢算反了
这是在Amy前面的人占15%
剩下的占85%
答案是85th percentile of all

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she is sorry for her （ ） grades f打头的词语