sonpham1406as sonpham1406as
  • 10-08-2021
  • Mathematics
contestada

Cho hai biến cố xung khắc và B, sao cho ( ≠ 0), ( ≠ 0). Hỏi A và B có độc lập không?

Respuesta :

benjaT2525
benjaT2525 benjaT2525
  • 10-08-2021

Answer:

Ta có:   P  ( A )  P  ( B )  =  0 , 12 . Vì  P  ( A B )  =  0 , 2  ≠  0 , 12  =  P  ( A )  P  ( B )

nên hai biến cố A và B không độc lập với nhau.

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