汗-_-||| 还是不懂...
假设"above"是80分,"between"是60分,"below‘是40分
如果box同学拿了12个"above", 5个"between", 1个"below", 那根据80-60-40 Rule, 他的得分就是:
(12*80 + 5*60 + 1*40)/(12+5+1) = 72.2*
* For illustrative purposes only
(12*80 + 5*60 + 1*40)/(12+5+1) = 72.2*
* For illustrative purposes only