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大小球盘本质上就是与全场入球总数相关的盘口,计算它的依据就是进球数的概率。1 ^) U8 |' @* C+ h1 [
我们先引入下列符号:/ h2 D+ v' c9 j" {
Pn(n=0;1;……;x)表示在一场比赛中可能出现的各个进球数的概率。7 _1 \. A! e4 }7 y. z' O0 s* m
即:P0=全场进0球的概率;P1=全场进1球的概率;……。# D& W/ E2 s. ^: J( t
那么 ∑Pn=P0+P1+P2+……+Px=100%。
# l6 x$ a* N7 T' r% U- r4 aBo表示大球的投注总数,D表示投注大球的回报总数额,O(Over)表示大球的赔率。5 Z! V+ E" m) D' V/ }1 y; [3 c
Bu表示小球的投注总数,X表示投注小球的回报总数额,U(Under) 表示小球的赔率。
5 J( B/ Z% w1 \3 X8 N1 c o. u
) E4 I) x; @; G. e8 y$ V在一场比赛中,我们以G表示大小球的盘口(G为任意数);K表示全场入球总数的结果。
+ s1 r) j2 X% A e- C3 @8 C7 A0 L+ u在任意盘口G下,全场比赛会出现如下3个结果:
$ O+ |! Y; j# E4 {8 u& v1:K>G 即出现我们通常所说的大球。
) b$ b2 n, {# Y% @& r# ?2:K=G 即出现我们通常所说的走盘。; ^7 h8 R4 G# M! m/ ]* \3 D" i# L; n& n- g
3:K<G 即出现我们通常所说的小球。0 w8 ~% l/ c! Y$ M7 U% r
# D3 c( n# p" H3 I/ s+ @
那么在此盘口下投注大球的回报总数额为:1 ], `' r7 O1 P; x% c6 a
D1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。
* a" X. T& T0 s) X. u0 wD2:(K=G)={Bo 即走盘退回本金。9 E/ ?7 X9 Z: f. Y& _! Q- `- c
D3:(K<G)={0 即输盘失去本金。( D0 f1 e% y, k* D2 U
; z- b2 p0 i- P% B$ I8 f
同理在此盘口下投注小球的回报总数额为:
) X9 e% G/ g+ n8 @" KX1:(K>G)={0 即输盘失去本金。
$ l c B8 l7 d! k( d3 o( k2 |X2:(K=G)={Bu 即走盘退回本金。* {7 [% Q, {5 q1 Z, `" M0 S
X3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。" i: D& I, l; s% N3 ~) B/ d
( @' y2 n2 ^' z6 q下面分别描述大小球盘为2.5球;2.5/3球;3球;3/3.5球时的大小球盘赔率计算方法,其余盘口可以由此类推。- a% g' l% X: n
$ F( H* q0 k3 `% H d! f5 d1:大小球盘为2.5球(G=2.5)5 w+ b2 F; N" H) J, t6 E, \
% B& E7 ]7 L0 S
在大小球盘为2.5球时,投注大球的回报总数额为:
% Z& b7 `5 N6 h/ ~: O2 oK=0 D0=0 ' Z# {2 k2 `( J; T+ _2 K
K=1 D1=0
+ D! B+ i: {9 H% bK=2 D2=0
* {; S& b) q6 B6 VK=3;4;....x D3+= {Bo* O ) ?8 p2 c" F; e) I2 {: S
6 [ Z. J: q' h+ o投注大球的期望回报总数为:∑D=Bo* O*(∑Pn-P0-P1-P2)=Bo* O*(1-P0-P1-P2)7 j. Y. R* q6 n
在公平条件下,我们可以认为实际投注回报与期望投注回报相等。( E! V. ]. u, z9 v% J
∑D=Bo* O*(1-P0-P1-P2)=Bo* K1 E$ w a" H n5 r9 {, f' u
O*(1-P0-P1-P2)=10 c" k! w! d& _
在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2)
/ N ?; A, T/ j& n! I 或者表述为 O=1/∑Pn----------(这里n=3;4;……x)0 J: f( J& B( i: f* e. V
+ M/ I3 ?6 T" @+ d
在大小球盘为2.5球时,投注小球的回报总数额为:
* G7 m, p( x% {% UK=0 X0=Bu*U
* h3 ]6 v% H! E# G9 NK=1 X1=Bu*U
( b; D) C! H0 k1 c2 |K=2 X2=Bu*U 9 q" ?0 j+ t6 ^% |' B' d
K=3;4;....x X3+=0
' g( g. f9 N* x. B2 G+ i! g4 C7 y4 u, A6 m% Y8 p
投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U* b Y0 u0 `/ O( j9 S
在公平条件下,我们可以认为实际投注回报与期望投注回报相等。; Q4 q, R% t# G3 m6 O( g. x
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu8 {7 m0 T6 x2 I8 s$ Q
U*(P0+P1+P2)=14 L+ F) d2 p# Y w! \
在此盘口下,小球的赔率为 U=1/(P0+P1+P2)
5 A8 d. a% R: b; i& \2 |) d! m
9 p! x5 ^1 w8 V, q) n' s X. y% i' E2:大小球盘为3球(G=3)# d C) y* I! Y: y
% l/ J% H; w1 `% [
在大小球盘为3球时,投注大球的回报总数额为:
- b( Q0 P& r* [3 R1 T! uK=0 D0=0 4 y' L( _, \) ?* ^ h. s/ X$ |
K=1 D1=0
7 N* h/ \4 k+ e6 cK=2 D2=0
2 [& l5 F5 N/ U6 W1 ^K=3; D3= Bo
# c* P. q; i, J% TK=4;5;....x D4+= {Bo* O
: f" x( K2 a; B# ]7 E5 z0 F' d
投注大球的期望回报总数为:
9 B' H* q; U/ @∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3)$ V1 N% {' c4 }' B* {; n" A
在公平条件下,我们可以认为实际投注回报与期望投注回报相等。& M/ x/ n2 e* i) w/ f! V' D5 i! a6 M- W
∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo5 q. J& \9 g3 v! h! Z2 ]7 p1 H) `
P3+ O*(1-P0-P1-P2-P3)=1
# g1 Q! V% k4 t6 D1 q" p 在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3)$ O! `+ z7 w# r0 m1 L4 S1 H
或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x)# x1 n6 |% S/ P- Y5 J" v! c3 t
$ i+ j/ V: o6 Z1 C
在大小球盘为3球时,投注小球的回报总数额为:
! T9 k, L. @* n- C% j# FK=0 X0=Bu*U & i* Y$ ?( y1 c2 W/ H, z
K=1 X1=Bu*U
( m; X! T$ v: q# u" P' j. c" wK=2 X2=Bu*U 5 O1 L( k' g# \' v% A( [
K=3 X3= Bu
' j+ I/ y5 U( Q/ q% |, nJ=4;5;....x X4+=0
) N! m) p: ^& L
; l' o( N3 P3 F# @; }' P投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu
5 l) A3 y3 P7 K, z3 B在公平条件下,我们可以认为实际投注回报与期望投注回报相等。" X6 r) G( l( S. p3 y: ]
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu
1 |- ~0 b; c& n( A; x1 { U*(P0+P1+P2)+P3=1 ~5 T) b* D# s& [
在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2)
) O. g! v7 g) k a) c8 D6 C: `- z$ T3 X4 b2 @- \2 n
3:大小球盘为2.5/3球(G=2.5/3)
+ r. {) q& y9 w5 [$ i
1 P+ U% d$ N# C3 l ]在大小球盘为2.5/3球时,投注大球的回报总数额为:
8 e9 E" X/ _# N6 O* }( N, bK=0 D0=0 : s) L+ i" E; I- k0 i9 O2 B/ J: J- y
K=1 D1=0 ! t9 \ R2 q" N' f6 r" _
K=2 D2=0
5 i, q: w" Q1 r# V" Z: `- o- e6 \K=3; D3= Bo/2+ O*Bo/2(即投注额的1/2在3球盘走盘; 投注额的1/2在2.5球盘赢盘)
9 f: H% Y, H- B I+ w) p6 c0 _K=4;5;....x D4+= {Bo* O 6 S7 {& q5 u$ k' e K0 ^
; H( A/ ^* Q. f% p& E/ ^投注大球的期望回报总数为:
, @8 l5 X4 X' S( t( _; F& `; a ∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3)
( D' ^. E* B. i9 g9 s5 ?* ]7 Q! Q/ m = P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)8 {: T* N1 W$ R, `3 x0 h
在公平条件下,我们可以认为实际投注回报与期望投注回报相等。
; r R; |; ^* b) B: ~: K2 A* p ∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo
1 w4 l z6 A; w' e- A P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=1# y' R. S0 _- K0 p- Y& n; v' s3 h6 L
O*(1-P0-P1-P2-P3+ P3/2)=1- P3/2
+ O9 I# C% s- O" p( [ 在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2) . t% r; F0 @9 W" O( H" H
! L$ [: t' Z& G2 ^! y+ q
在大小球盘为2.5/3球时,投注小球的回报总数额为:
* V1 C$ j8 z# p& `7 u F9 `' bK=0 X0=Bu*U
+ ]9 W5 P, p5 r% KK=1 X1=Bu*U
6 q @. @: H) N4 y$ ZK=2 X2=Bu*U # ]8 v' @* n' e1 Q% Q' w
K=3 X3= Bu/2(即投注额的1/2在3球盘走盘; 投注额的1/2在2.5球盘输盘)' s. P- n) ]5 Z. \4 o8 U. n# Z) s
J=4;5;....x X4+=00 @9 o$ l3 c1 }) [+ i: [
4 [5 z. j6 i! ^
投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2
' R8 ?9 l M" b% E& N在公平条件下,我们可以认为实际投注回报与期望投注回报相等。8 |& f+ W; p, o" _1 O
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu! J+ B! k4 [/ Y) e+ Y/ e( j8 z; y
U*(P0+P1+P2)+P3/2=1
+ }4 K" ]6 i5 C E2 Y 在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2)' [ f$ s- L) l( l& ]
4 R; X$ }2 W/ s% j4:大小球盘为3/3.5球(G=3/3.5)
6 F# R" \) l/ _5 H" G0 m+ m6 _
" l; t5 D9 z! j- O在大小球盘为3/3.5球时,投注大球的回报总数额为:
" s0 [! h) j& H/ m ^, ^K=0 D0=0
" i! t* ? T- E% [K=1 D1=0 & h9 i; g5 Q; C+ Q1 k0 P: z
K=2 D2=0 A$ f7 {* A/ A( Q
K=3; D3= Bo/2(即投注额的1/2在3球盘走盘; 投注额的1/2在3.5球盘输盘)& { m& s- {2 C' {# W; u- a# j* E
K=4;5;....x D4+= {Bo* O - g0 Q& w" r2 T
9 O( `, b7 n% ^. O* ^1 ~* U投注大球的期望回报总数为:
. Z/ L8 n! R7 }, Z8 w7 T ∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3)
' `. C! {/ W) y; Q = P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)
/ }( m3 j" `/ _8 J在公平条件下,我们可以认为实际投注回报与期望投注回报相等。6 N9 f0 C9 F+ c5 q
∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo) J' N$ U6 W( P2 A
P3/2+ O*(1-P0-P1-P2-P3)=1
) w' W# n- p9 N' F5 J3 v; X- j% H O*(1-P0-P1-P2-P3)=1- P3/2, _+ A7 ^* N- d3 N; ~& j! O, F
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)
5 I* t* F4 O$ B: m: E 或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)0 o/ A. g$ o$ G( R7 t
$ Z9 G, a! ^2 E$ T- ?5 `) O在大小球盘为3/3.5球时,投注小球的回报总数额为:* Z, `3 `& l9 O( C& }
K=0 X0=Bu*U
. q5 _0 Z3 o- }& q9 r: vK=1 X1=Bu*U * t/ c3 w5 `! ]6 t( |: J" r
K=2 X2=Bu*U % V! P$ g+ f0 s' `: R$ |
K=3 X3= Bu/2+U* Bu/2(即投注额的1/2在3球盘走盘; 投注额的1/2在3.5球盘赢盘)
& ^: P! a7 M- z4 u8 G2 k9 @ \J=4;5;....x X4+=0
. M& G3 ~% X/ Q$ T
( v- f4 o) D2 K/ g6 Z: g5 f6 E3 @0 y投注小球的期望回报总数为:8 d3 q5 m4 s/ d- _5 D1 c B5 Z9 `% G
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2
- i7 O: a) D G1 u+ |在公平条件下,我们可以认为实际投注回报与期望投注回报相等。
0 K# h+ d0 z1 G7 B- t ]% P ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu
7 E) R( E, a2 b5 U. i4 } U*(P0+P1+P2+ P3/2)+P3/2=1
1 P/ U/ r/ v) @' g( S q- P 在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2)
- e: C' y! l6 C9 G3 p# a% t+ ^) R: I# V. @ L. D! f- B
4 j8 |4 c; b3 r. w$ n一场足球比赛就是以主,客进球数最终是多少来体现其结果的.8 [6 P/ a/ v9 E( d& J5 E
大部分博项的赔率都可以通过进球概率这个基本数据实现互相转换!6 b/ e2 x' Y' V. S* i; T
+ `3 y7 V7 f3 C! d1 y$ X5 J, TP0 P1 P2 P3 P41可以由统计函数生成,也可以由开盘赔率计算得出,比如用波胆赔率计算。(这种方法计算出的Pn值有一定的偏差) |
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