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急! More about Dispersion 13Q5
2013-09-17 3:27 am
回答 (1)
2013-09-17 9:40 am
✔ 最佳答案
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(a) The required percentage (based on the approximation mentioned in the textbook) is
100% - (100% - 99.7%)/2
= 100% - (0.3%)/2
= 100% - 0.15%
= 99.85%.
(b) The number of candidates with scores higher than Wilson is 20000*99.85% = 19970.
收錄日期: 2021-04-13 19:43:03
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130916000051KK00163