Table 5: The probable state and its expected cost of stage 2.

State ( )
 ( ,  )
Disposal quantity
Expected cost of stage 2

(0, 0)1.6532.406
(0, 1)1.6527.030
(0, 2)1.6528.531
(1, 0)0.6535.406
(1, 1)0.6529.531
(1, 2)0.6531.031