[機統] Random probability distribution

[susiseptem (..)]

https://i.imgur.com/MxvcgLc.jpeg

僅需要 B部分就可以了
1000P答謝
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推 cuylerLin   : (i) C(6,4)*p^4*(1-p)^2+C(6,5)*p^5*(1-p)
→ cuylerLin   : (ii) the assumption that each traffic light
→ cuylerLin   : functions independently
→ cuylerLin   : (iii) Let T be the journey time of a particular
→ cuylerLin   : day. 先用 Z score 計算 P(T<51)，最後再乘上 75