另外用一個簡單既 statistical measurement 就可以知道究竟個 betting strategy 係唔係一個好既策略……
我地可以睇睇佢既 profit factor……
所謂 profit factor 就係 winning amount/ losing amount……
通常 profit factor 要大過 1.5 先合格，大過 2.0 先算一個好既 system……
又攞你既 example 黎講
(1) 如果每十次贏四次的話，你既
profit factor = 4*(3-1)/6 = 1.33 (雖然賺錢但唔合格因為風險過高)
(2) 如果每十次贏五次的話，你既
profit factor = 5*(3-1)/5 = 2.0 (可以算係一個好既 betting strategy)
(3) 如果每十次只係贏三次的話，你既
profit factor = 3*(3-1)/7 = 0.86 (長玩蝕死你)
