不重复的抽五张牌,仅抽到对子的几率是多少?用matlab怎么弄啊,求大神解...答:>> format rat >> nchoosek(13,1)*nchoosek(4,2)*nchoosek(12,3)*nchoosek(4,1)^3/nchoosek(52,5)ans = 352/833 如果结果显示为小数 >> format short >> nchoosek(13,1)*nchoosek(4,2)*nchoosek(12,3)*nchoosek(4,1)^3/nchoosek(52,5)ans = 0.4226 ...