Probability 機率

1. Any probability can happen, especially in throwing dice and drawing cards. 任何機率都可能發生，尤其是在丟骰子和抽牌。

2. In Thirteen. JQKA2 are the top numbers instead of JQK so the probability is 5/13 not 3/13.

在十三。 JQKA2是頂部數字而不是JQK，所以概率是5/13而不是3/13。

3. Black Jack 21 點: 10,JQK 4/13 (2) =8/13 to get 1 (10JQK) (60%) but if 20 and 21 (4/13)(5/13)=(12%) But 3 cards' results are not within my reach ability.