題目:對于不重復抽樣而言,如果不考慮順序,則每個樣本被抽中的概率為()
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!]
正確答案:C
試題解析:暫無