Figure Link....http://i127.photobucket.com/albums/p138/hawkele/PICT0022.jpg
"b part"...how to solve it?
thanks
f 5 數....Frequency distribution
2007-01-02 8:44 am
回答 (1)
2007-01-02 8:49 am
✔ 最佳答案
b part 同 a part 無關the mean
=(y-4+y-3+y-3+y+2+y+5)/5
=y
the variance
=[(-4)^2+(-3)^2+(-3)^2+2^2+5^2]/5
=12.6
standard deviation
=(12.6)^1/2
=3.5469
收錄日期: 2021-04-25 16:49:47
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070102000051KK00190