The probablity of A and B agree is 0.6*0.7 + 0.3*0.4 = .54 (54%)

We are talking about the correctness of A and B combined.

所有跟帖： 

• I need to correct that if A and B agree, the correct chance is 7 -planotx- ♂ (0 bytes) () 11/07/2010 postreply 10:21:01

• 那也不会是８８％呀 -万枫- ♂ (0 bytes) () 11/07/2010 postreply 11:58:52

• yes, you are right. My post was cut -planotx- ♂ (167 bytes) () 11/07/2010 postreply 14:31:55

• 注意：准确率不是一致率，１２％是两法都错误的概率，不应该加到准确率里 -万枫- ♂ (0 bytes) () 11/07/2010 postreply 12:01:36