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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。6 ~6 \- F# j2 {5 T% X: n/ v
我们先引入下列符号:
2 m) n5 `$ O3 @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。/ l+ G5 O+ B) ]! |% K7 i$ T
即:P0=全场进0球的概率;P1=全场进1球的概率;……。( u1 ]4 @8 @( {
那么 ∑Pn=P0+P1+P2+……+Px=100%。
& _0 M% \2 X) _% t* tBo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- X- R# j2 g" W- h
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。
9 o% q, z5 O2 ~4 n' t8 @: e2 E7 X# E9 Q3 i4 i
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。
2 p2 I- J$ n+ L9 l# k在任意盘口G下,全场比赛会出现如下3个结果:
( I/ d- ]% T8 o; y) ^" H1:K>G 即出现我们通常所说的大球。
6 ~7 y$ [, e* K* y% \6 @( M2:K=G 即出现我们通常所说的走盘。
- u+ s2 J: j9 k6 U3:K<G 即出现我们通常所说的小球。
) M& m# R/ Z. G0 a6 i8 H4 |
( y) m( k6 G- A那么在此盘口下投注大球的回报总数额为:
2 {% E* H" P6 }3 ^) AD1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。( N4 R" I' t5 W7 x$ P! i. o: l
D2:(K=G)={Bo 即走盘退回本金。
1 N% m8 R. l. m9 c+ `$ x- v' r0 VD3:(K<G)={0 即输盘失去本金。- p" W; \7 @" Z# j; J: a
& \6 ?# t' n9 ^7 J; G8 T
同理在此盘口下投注小球的回报总数额为:
+ m" U, [2 B, D5 S3 oX1:(K>G)={0 即输盘失去本金。9 J( h l7 g- H7 O7 F
X2:(K=G)={Bu 即走盘退回本金。
# ?) p6 E' {7 I; x9 YX3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。
& O4 z7 C+ v1 u4 P) \! S: _
: ], _, {! j/ Q/ y8 x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。. {9 r3 O$ f+ ^* ^
# z4 E! q2 X9 _9 C' v. L! m
1:大小球盘为2.5球(G=2.5)" d2 A0 w& _2 v1 Z; u, {1 M
0 A# W, u. G. i6 y. {$ N2 ~在大小球盘为2.5球时,投注大球的回报总数额为:8 p& o% o5 f2 ]3 S
K=0 D0=0
' F! _+ A+ Z9 XK=1 D1=0
: w; l p2 P6 a4 x3 HK=2 D2=0% E$ g; U1 Y( v0 M& A$ X% ~
K=3;4;....x D3+= {Bo* O / N+ _: ` O& T4 d7 ?0 q& c( B
3 i5 @# |* N) H8 L* Y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)
# d* R% @+ z" Z. C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。% D v7 H& B- L. [0 }5 z- @
∑D=Bo* O*(1-P0-P1-P2)=Bo, `7 Z/ E6 {. ^+ [+ O. A
O*(1-P0-P1-P2)=1
$ a; J" Y; H/ G3 W7 G: \& m7 u 在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2)( \) a6 T/ y; C
或者表述为 O=1/∑Pn----------(这里n=3;4;……x)& C# q5 _ Z3 Q( T
+ A M% b. k }1 V
在大小球盘为2.5球时,投注小球的回报总数额为:
2 g& w6 L( l4 c" L: ~) eK=0 X0=Bu*U - n( {2 P. L; N8 q
K=1 X1=Bu*U - f8 `% M: C) q4 Q
K=2 X2=Bu*U 8 U! C# W, D6 ~: L ], }5 O
K=3;4;....x X3+=03 l( F1 P0 s7 f! h- \8 ~- B
2 _+ D4 [5 T' \3 u
投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U7 H& f7 b. j% ~1 r* \& W
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。
: n; Q' h. G5 i ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu
+ N% G9 R0 t8 j U*(P0+P1+P2)=1
8 T! y( V5 r7 V; k 在此盘口下,小球的赔率为 U=1/(P0+P1+P2)
4 S S7 R, f& U6 s4 {1 I% I' I( \- V- q6 z
2:大小球盘为3球(G=3)
1 T$ R3 J; S1 E) f3 c: m$ d4 ^ n1 w1 j& v! |5 y
在大小球盘为3球时,投注大球的回报总数额为:
# a* @6 P* r3 s" \5 FK=0 D0=0
9 A5 {' X. b" \4 w) aK=1 D1=0 " c9 `/ |6 R" y2 M4 ?% @
K=2 D2=08 m7 \3 b% X- ^" O H5 s. g
K=3; D3= Bo
0 L1 h9 T7 _! s0 B0 w- Q# QK=4;5;....x D4+= {Bo* O
* A D% b7 Z W7 i5 I% Q% [0 X' W: J) k3 _7 L6 h6 C
投注大球的期望回报总数为:, I9 y5 h: f! U
∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3)
F% ?, H& q; l4 ~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。+ w H+ J* d; @( U3 z- H! v1 A
∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo# Q, q0 i* j4 o9 z& F s9 Z1 C
P3+ O*(1-P0-P1-P2-P3)=12 Y- ~; h. L1 Q+ |
在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3)
$ S6 E5 u- t2 ~ 或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x)
7 c" d. X/ C4 j3 k1 c; G9 C$ o0 c' s x- M$ ^* v; N' Z1 m/ d6 W
在大小球盘为3球时,投注小球的回报总数额为:
& u+ \( o: u# K. M: yK=0 X0=Bu*U
" @. K4 a: l$ T9 YK=1 X1=Bu*U
O) m7 t: ^4 n8 a! P7 zK=2 X2=Bu*U
' J/ p7 R+ z: l& Y& x# kK=3 X3= Bu# o4 j" n6 b* ?/ Q
J=4;5;....x X4+=0* w) G/ I. p, W
: X! _ b, R0 S# Q- a: 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
y- D, z/ ^# P; S$ H; q8 t; q6 ?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。7 s: p. b- Z7 ^" v3 z
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu& X. e r# X, H7 m
U*(P0+P1+P2)+P3=17 }0 S+ p8 A1 Z5 z
在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2)
+ x- e4 l' W- K0 w" O* b {8 u5 X
$ ^% Y9 c* _, `4 t3:大小球盘为2.5/3球(G=2.5/3)
; n* @2 E- E9 q7 v* u8 }9 b
& a1 G' Z, [5 y5 O4 n在大小球盘为2.5/3球时,投注大球的回报总数额为:% G/ ^ n% _# `
K=0 D0=0
|7 H! j# k- ?+ f* l1 U0 PK=1 D1=0 1 a( V5 d5 ]/ p8 J, J/ [7 x
K=2 D2=0
: n& N+ Z# @1 ^& ]! P6 wK=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)
- x. n% V4 f* S' l) D- QK=4;5;....x D4+= {Bo* O
7 H4 Y% S; j; y. U- {4 J: g( c7 ~3 H
投注大球的期望回报总数为:
8 V2 Q' T. g7 ? ∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3)
4 @$ R- T! [, a8 I = P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)6 _2 F* t# N' [. R! ~* 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。9 d, S7 l& w6 u0 U0 u [) s8 A* h
∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo
: i* k7 Y+ n! b% q% r6 P2 g' |# N" H P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=1
' i5 d! @2 @# s" t x3 n O*(1-P0-P1-P2-P3+ P3/2)=1- P3/25 m- y; u$ F5 J2 j7 [3 {9 g$ b
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2)
* ]6 w7 L! p/ f6 o
: m) S' L" i7 e在大小球盘为2.5/3球时,投注小球的回报总数额为:
8 p- `! c" l# _8 WK=0 X0=Bu*U . ?; ]3 S+ O- P0 E' z& N! B" S
K=1 X1=Bu*U & T. l6 m0 ^4 _4 s0 A# J9 b/ ]
K=2 X2=Bu*U
+ E( W. i# i5 x5 U0 m4 [% Q [7 K, ~2 LK=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)
9 c3 a( a2 `2 F- C P# R* n9 OJ=4;5;....x X4+=00 z5 U- w- q0 x& }, z, t
V) o! A$ q+ {. B) [) z0 ]+ g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% N! M$ c" `. G+ D0 R( C' 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。& U: b$ a/ s& o8 \% E1 p
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu
5 J1 c0 ~+ J: {5 A U*(P0+P1+P2)+P3/2=1! X) m4 m0 M3 N9 F; O
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2)
9 s9 b; E) q1 w: ~( B8 U
1 E q+ X/ s" a7 J4:大小球盘为3/3.5球(G=3/3.5)6 h. D3 m+ C: v. [5 h# ~& Z
6 Z" J8 C0 t3 ~$ b- u
在大小球盘为3/3.5球时,投注大球的回报总数额为:
& }# r+ V' A0 D" K5 t6 IK=0 D0=0 0 u6 K) w _! ~% `' x9 Y
K=1 D1=0 3 T% \, k7 h" w/ S1 l1 ]
K=2 D2=0
; \4 I& f% V0 O3 b! V9 XK=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)
: h' J$ T2 g. {8 J; V! V- yK=4;5;....x D4+= {Bo* O
9 y, `# {* Y" C8 L* d4 z# U# w% @0 Z- w/ H: ^) t: S
投注大球的期望回报总数为:
4 E( ]% m6 W( u5 R4 P1 t+ X h ∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3): M+ a1 e" y4 c" m8 Y9 A$ C
= P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)
+ Q' Q4 F7 l: h- ]3 g+ }% f/ E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。/ ~% W$ q! }" Y# t" T3 e
∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo
1 n$ y) p( r& R- R1 R P3/2+ O*(1-P0-P1-P2-P3)=1; a# O) `; v" E1 t. t
O*(1-P0-P1-P2-P3)=1- P3/2
( [6 F0 X D& G8 | 在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)
; }( P# N x& r" I6 T+ R e1 z 或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)6 ]- Q7 K( E' ^. o7 ? Q# z
4 P7 I8 f6 g1 A# `. X
在大小球盘为3/3.5球时,投注小球的回报总数额为:
3 \4 l3 [5 s9 w0 W4 |1 ]K=0 X0=Bu*U
3 H) e5 u1 ^2 t: O$ BK=1 X1=Bu*U
: Q$ l3 p+ w( b4 r6 d, I5 E% t0 wK=2 X2=Bu*U
. w. [/ X. }+ S% _# D. y. b0 V1 [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)
0 s" l2 k4 K- e0 d# \5 fJ=4;5;....x X4+=04 q8 M8 C& {- s" U
7 t& J. R8 E- l: d, y% S: z4 d U7 C k
投注小球的期望回报总数为:
0 J I5 ~. T+ }" _, Y) ` ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2/ N8 j( x' A: l8 i; q7 `
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。
- |* t6 O9 O1 M ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu R9 O# H! W9 L) G* R0 o
U*(P0+P1+P2+ P3/2)+P3/2=1$ b# p6 K6 q+ L S
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2)
/ P0 @+ r2 q. J! Q7 L' e; g9 Y- l. Y: T7 ^4 G
5 k4 U& K: M+ f9 @: k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.) X' n* ]) g- L7 v( v' H
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!8 f7 f! m# Q$ I% T- r
3 {% V H6 C8 _3 N
P0 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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