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解密彩票中奖概率：双色球1/1772万 大乐透最难中
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在一般人的印象中，彩票想中奖比较难，尤其是大盘玩法。由于多数人没有过硬的数学基础，因此对彩票的中奖概率琢磨不透，于是有甚者就在无意中夸大了彩票的中奖难度，这一夸大就夸大到了让人瞠目结舌的地步。在此整理了国内主流彩种的玩法及头奖概率计算方法，希望对彩民朋友有所帮助！
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双色球头奖概率：1/17721088! B2 L$ Q7 Q) a
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双色球投注号码由6个红色球号码和1个蓝色球号码组成。红色球号码从1-33中选择6个；蓝色球号码从1-16中选择1个。头奖可能性情况：(33×32×31×30×29×28)/(1×2×3×4×5×6)×16=1107568×16=17721088，由此可计算出双色球的中奖概率为1/17721088!% D# z$ A3 Q! L1 W$ I2 B" [7 z
" }2 [- o L( I 大乐透头奖概率：1/21425712$ j4 [, U1 u- C6 Z8 h3 q& `$ r! W
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超级大乐透是指由购买者从01—35共35个号码中选取5个号码为前区号码，并从01-12共12个号码中选取2个号码为后区号码组合为一注彩票进行的基本投注。头奖可能性情况：前区=35×34×33×32×31/5×4×3×2×1 =324632，后区=12×11/2=66，由此可计算出超级大乐透的中奖概率为1/324632×66=1/21425712!
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9 x; U" h U: D k- Z6 ` 七乐彩头奖概率：1/2035800
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0 {( C+ I, } v; ?* R" _0 X6 | 七乐彩采用组合式玩法，从01—30共30个号码中选择7个号码组合为一注投注号码。头奖可能性情况：(30×29×28×27×26×25×24)/(1×2×3×4×5×6×7)=2035800，由此可以计算出七乐彩头奖概率为1/2035800!
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: `" Z* m' o9 \( |5 D. E. I 七星彩头奖概率：1/10000000
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/ U. f9 o6 l, d5 w 7星彩是指从0000000-9999999中选择任意7位自然数进行的投注，一组7位数的排列称为一注。每期开奖可能情况有1000万种，头奖概率即为1/10000000!
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3D/排列三头奖概率：1/1000. e2 y4 p G" |, N
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购买福彩3D或体排列三时，由购买者从000-999的数字中选取1个3位数为投注号码进行投注。每期开奖可能情况有1000种，头奖概率即为1/1000!
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# P( j$ X, }, k4 Y 排列五头奖概率：1/100000
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- `2 n0 Z4 B% g0 W& i1 s' c% ] 购买排列五时，由购买者从00000-99999的数字中选取1个5位数为投注号码进行投注。每期开奖可能情况有100000种，头奖概率即为1/100000!
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体彩22选5中奖概率：1/26334
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22选5是指从01-22共22个号码中选取5个号码进行的投注，一组5个号码的组合称为一注。头奖可能性情况：(22×21×20×19×18)/(1×2×3×4×5)=26334，由此可以计算出22选5头奖概率为1/26334! |
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