Mobilheimbau

Kategorie: Wohnen: Mobilheimbau:


http://www.mobilheimbau.de/
Eintrag vom: 14.08.2013.


??????????????????????? S^2 ???????????? 2 ????? \overline {X} ?? \mu ?????? \displaystyle \frac {1} {n-1} ? ??????????? \mu ?????????? \overline {X} ??????????? \overline {X} ?
https://www.zhihu.com/question/20099757
 ZHIHU


Bias?Variance?????trade-off???????????????????????????????? ???K-fold Cross Validation?????????????? ???Variance?????????????
https://www.zhihu.com/question/27068705
 ZHIHU


?Variance is the expectation of the squared deviation of a random variable from its population mean or sample mean. Variance is a measure of dispersion meaning it is a measure of how far a set of numbers is spread out from their average value.
https://www.zhihu.com/question/360210679
 ZHIHU


Variance? variation ???????????????????? variance????????? ??? variation??????????????????????????? ??? ????? ???? ??? X???60%???Y?variation?
https://www.zhihu.com/question/316473144
 ZHIHU


???????????????????????????? ????X= {}?????? = ????? ????X????????????X????????????????????X???????????n? ????????X????????????????????????? ...
https://www.zhihu.com/tardis/bd/art/444011155
 ZHIHU



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