求解一道GRE数学题
IFtheprobabilityforeachcannonshootsthetargetis60%,whichofthefollowingnumbersofcannons...
IF the probability for each cannon shoots the target is 60%, which of the following numbers of cannons -can reach the probability at 99%? -3 -4 -5 -6 -7 why?
展开
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询