Herman Yeung 網上 Free Lesson (2014/I/Q19 概率)

[@lkc9877]

真系好支持你講書既方式。。。清楚，又有講笑。。。真系唔錯

[@PeaceAction6464]

簡單,清晰,容易明白,生動有趣

[@einsteinlo418]

頂 我學到好開心😂

[@無氪騎士]

出呢題嘅人有著強烈想整死學生嘅心

[@joshlo9388]

Thank you very much,u helpp me a lot,god bless u

[@ansonwong5848]

支持!

[@EXincredible]

勁！

[@SeanMura]

Thank you sir

[@Johnhung12345]

厲害!

[@ekaisum]

其實同證明sum of GS條式嘅方法一樣haha

[@Gamiboi612]

Thanks

[@eric334413]

S.3 都聽得明haahhaahha

[@余汝捷]

牛比！