http://i213.photobucket.com/albums/cc101/Glamorous_Premonition/SD.jpg
In the figure, the 3 curves show the frequency distribution of the wages of workers in 3 companies, X, Y and Z, each having 1000 workers. Which distribution has the smallest standard deviation and which the greatest?
Maths Standard Deviation
2010-03-18 10:20 pm
回答 (1)
2010-03-19 12:39 am
✔ 最佳答案
Since the width of the curve increases when the Standard Deviation of it increases,X has the smallest standard deviation and Z is the greatest.
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100318000051KK00728