P1
P2
probability: p = × i = 1 , 2 q p μ i
[ P 1 → P 2 ] ∧ P 1
T
p 12 = × i = 1 , 2 q p μ i ( { ( T , T ) } )
F
p 1 2 ¯ = × i = 1 , 2 q p μ i ( { ( T , F ) } )
p 1 ¯ 2 = × i = 1 , 2 q p μ i ( { ( F , T ) } )
p 1 ¯ 2 ¯ = × i = 1 , 2 q p μ i ( { ( F , F ) } )