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https://www.zhihu.com/question/518750106
??????y????^?????????????WORD????
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????????????? model Y? - ??
...???Model Y?1?10?????????????????????????????????????????????Model Y???????????3???????????????????????????????????????????YU7???R7???????????Model Y???? ......
https://www.zhihu.com/question/9212711579
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...??????????????????????????????? 2011 ? 1 ????????????????????????????????????????????????????????????????????????????????????????????????? ......
https://www.zhihu.com/?lang=zh-Hant
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y= tanx??????????????_????
...??????? y = tanx ???????? ??????????????tanx??????? ???? y = tanx ?????????? (k? + ?/2) ?????? k ???? ????? x = k? + ?/2 ??cosx = 0?? tanx = sinx / cosx????? tanx ?????...
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E (Y|X)????????????? - ??
...E (Y|X)????????????? ??????????E [E (Y|X)]??????????????????????????????? ?????????????????????????? ???? ??? 61 ???...
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y= x?2????????????_????
...y= x?2?????????????????????????y?x^2????x????????????y???????o??????????????????y?????????????????????????...
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???? ? ?????????????? - ??
...????????????????????????????? y^ (^ ??) ? y-hat??? y-? y- (- ??) ? y-bar??? y-? y. (.??) ? y-dot??? y-? y~ (~??) ? y-tilde??? y-?? y? (???) ? y-arrow??? y-?? ???????????????????????????????? ......
https://www.zhihu.com/question/19698133
Yandex - ???????????_????
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