题目:对于不重复抽样而言,如果不考虑顺序,则每个样本被抽中的概率为()
2024-11-08
APnN=N!/(N-n)!
B1/Nn
C1/CnN=[(N-n)!n!]/N!
DCnN=N!/[(N-n)!n!]
B1/Nn
C1/CnN=[(N-n)!n!]/N!
DCnN=N!/[(N-n)!n!]
正确答案:C
试题解析:暂无