答案是不是
(80*0.1+19)/(100+80)=0.15
即15%?
噢算反了
這是在Amy前面的人占15%
剩下的占85%
答案是85th percentile of all
G的數(shù)學(xué)題,
G的數(shù)學(xué)題,
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?
題意不懂,
那這個(gè)題目是講什么??？
不是求的百分?jǐn)?shù)啊，答案是85th
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?
題意不懂,
那這個(gè)題目是講什么??？
不是求的百分?jǐn)?shù)啊，答案是85th
英語(yǔ)人氣：170 ℃時(shí)間：2020-02-05 03:51:21
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