0.10.3 0.20.1 0.50.1 B C 0.20.1 0.30.2 0.30.2 0.10.1(0.50.1(0.10.1 (A∩B)°C 0.20.10.30.2(0.20.1 (A°C)n(B°C) 0.30.2)(0.20.1)(0.20.1 0.20.1)(0.302(0.20.1 (AB)°C≠(A°C)n(B°C)        =         =         = 0.3 0.2 0.5 0.1 , 0.3 0.2 0.2 0.1 , 0.2 0.1 0.1 0.3 A B C ( A∩B ) ° C         =                = 0.2 0.1 0.1 0.1 0.3 0.2 0.5 0.1 0.2 0.1 0.1 0.1  ( A ° C )∩( B ° C )         =                = 0.2 0.1 0.2 0.1 0.3 0.2 0.2 0.1 0.2 0.1 0.3 0.2  ( A∩B ) ° C  ( A ° C )∩( B ° C )