三个骰子开单双概率

简介：Your Highness, there are dozens of processes in the production of bird guns. Each process must not be sloppy. If there is a slight deviation, the entire bird gun will be scrapped. When ten qualified bird guns are produced, there will also be ten unqualified defective products. When being remade, this is done by an experienced craftsman with more than five years of experience. If it is a novice craftsman, the scrap rate will be higher, Qin Ning explained in detail.