P(2) = 2/12 = 0.1667 |
= 1 – P(2) = 1 – 0.1667 = 0.8333 = 10/12 |
= 1/10 = 0.1 |
= 1 – = 1 – 0.1 = 0.9 = 9/10 |
P(1|2) = 0/2 = 0 |
= 1 – P(1|2) = 1 – 0 = 1 = 2/2 |
= × = 1/10 × 10/12 = 0.0833 = 1/12 |
= × = 9/10 × 10/12 = 0.9167 = 9/12 |
P(12) = P(1|2) × P(2) = 0/2 × 2/12 = 0 = 0/12 |
= × P(2) = 2/2 × 2/12 = 0.1667 = 2/12 |