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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。
" R9 _" g# h2 v9 [" q$ P& S我们先引入下列符号:2 n& F2 a0 N; u+ h# p
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。) N5 w% }+ b. Z+ B2 O: ]1 z2 P
即:P0=全场进0球的概率;P1=全场进1球的概率;……。4 o, s. S9 Y2 K c# Y6 U- B
那么 ∑Pn=P0+P1+P2+……+Px=100%。3 U) m' j) J4 G
Bo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。
1 K7 o+ s) B' r# CBu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。
" U ^, h k8 B5 D# }6 S c; [ B6 e @4 m* _9 K* T
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。) |/ r: K. O6 j6 u) z* b
在任意盘口G下,全场比赛会出现如下3个结果:
% p% \* j! q ^6 I [2 M0 I1:K>G 即出现我们通常所说的大球。3 x% I- U7 u' J; U: g3 ?" k$ h
2:K=G 即出现我们通常所说的走盘。
$ U" [& Y U3 M3:K<G 即出现我们通常所说的小球。
8 ]# p! k+ d7 G! M8 x7 W* J2 h4 ?( X: ^7 g2 a4 U
那么在此盘口下投注大球的回报总数额为:
2 u7 T- Z/ A G6 h7 n4 A, {; BD1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。5 x3 M* y9 b, y' u
D2:(K=G)={Bo 即走盘退回本金。
- \1 s/ `- {$ O" C9 a6 PD3:(K<G)={0 即输盘失去本金。
9 O- c) D. }$ L8 ]5 U2 B" S8 n* \6 S6 x4 o5 x9 }' P
同理在此盘口下投注小球的回报总数额为:
+ i6 v* d* ?) UX1:(K>G)={0 即输盘失去本金。0 Z+ c `# C4 Q" H$ q1 _1 W
X2:(K=G)={Bu 即走盘退回本金。/ a# `8 D% I( t* g6 D* t' g
X3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。
# X- w. a6 \3 i, x1 z+ S$ W9 s, {- b ^6 C7 |: j
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。
1 O) p- `( _: F& p4 K
0 s* _4 I+ G9 k: o4 \0 f4 L3 D1:大小球盘为2.5球(G=2.5)9 o6 i1 n* [, @% W& u9 h* O: K* q
" I8 _3 x% x: l9 U ]
在大小球盘为2.5球时,投注大球的回报总数额为:
% v3 C, k( m1 l f9 M6 a* JK=0 D0=0 , R- Q; K( y O% N
K=1 D1=0
" r7 _$ ]8 @7 nK=2 D2=0
4 T' B" h4 |; k6 E5 N DK=3;4;....x D3+= {Bo* O * k7 M/ O3 i4 o
* j/ W1 e# u# q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)2 P) O- n; p1 n5 O5 P Z& z
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。1 z+ P3 I. a- D) p
∑D=Bo* O*(1-P0-P1-P2)=Bo
( W! E: Y0 c; ?% h O*(1-P0-P1-P2)=1
; M( g& c/ p) \ 在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2): D3 [9 U! Y4 f+ ?
或者表述为 O=1/∑Pn----------(这里n=3;4;……x)4 a2 b$ x$ u/ Y
3 C: x1 X. Y: E
在大小球盘为2.5球时,投注小球的回报总数额为:
$ S3 Z' M7 L( Q" t f6 }/ ?% JK=0 X0=Bu*U
4 N: F" V0 f) _1 \( yK=1 X1=Bu*U ! ]; E4 s1 b& [( t
K=2 X2=Bu*U . k- z: T, g2 ~ T' S, O0 V$ S6 |: W
K=3;4;....x X3+=0
& K' }9 o$ u. p4 D
$ N4 D4 B' T! z6 D. T投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U( s( a- o4 \1 I5 F& B: m: c6 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。
, C% T4 D( E8 ^" B ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu
, r$ L1 `* B! z1 M, v$ V U*(P0+P1+P2)=1
* z8 g1 t0 ^9 U$ T: E 在此盘口下,小球的赔率为 U=1/(P0+P1+P2)
M7 i2 C' @( T$ a( I( x" K
s* D( e$ X. x' c( \2:大小球盘为3球(G=3)
6 Z/ m% d$ ?6 x- e; J
& c S% ^6 `+ ~" }7 k# ?$ S在大小球盘为3球时,投注大球的回报总数额为:7 B3 f% p6 P' a9 H: E# R
K=0 D0=0 ; `% ]; P' c# T! T
K=1 D1=0
5 V8 J+ l" p# _# KK=2 D2=0
3 v S" h9 D3 I$ d7 K+ K oK=3; D3= Bo
( z: i3 U! x- q- q5 u$ BK=4;5;....x D4+= {Bo* O ; J" ~% Q7 |# |+ Y5 o
& c; A: A5 {! f8 V+ w: W投注大球的期望回报总数为:8 v4 v2 D0 l$ d, F# _) `) p
∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3); h% [) }6 L' I* W7 Y9 f
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 L; A& L% P5 x. m- k" R( ^6 M ∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo5 o3 i0 Y. c- x3 z
P3+ O*(1-P0-P1-P2-P3)=1) ]- _( O7 V+ R9 r8 _
在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3)
0 u( u# A8 E) l, ? 或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x)& j% m4 R: a1 H+ z
. h6 x' i% I( H" B4 {6 }6 S `7 z在大小球盘为3球时,投注小球的回报总数额为:" d. ~+ G7 r" L3 {6 L# z% V
K=0 X0=Bu*U . I2 P( [0 p0 N
K=1 X1=Bu*U 1 h# M0 A3 B, t% _
K=2 X2=Bu*U
' } D& q* R; s* q/ f: KK=3 X3= Bu9 V! G- Y Q1 z/ T$ T
J=4;5;....x X4+=00 C# W2 [ K: E% U- }$ X( m; ?
* x4 A, ~# ^' A0 i0 Q0 _) a( S6 [7 e R
投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu
( S+ q' X5 I w/ 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。, X) r% U9 `5 `, a
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu1 d5 O. Y. `/ @" A7 K5 V4 |$ [
U*(P0+P1+P2)+P3=16 Y! d: S+ ^' @ j, I8 t2 F; z* T) {
在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2)
0 T3 Q" \: l: `* h/ D: U
, F1 `6 `0 s! x8 |0 z8 Y3:大小球盘为2.5/3球(G=2.5/3)6 D! F5 C: {- R7 \, t8 a, p' P% Q
) _& V9 c, H# N% G( |在大小球盘为2.5/3球时,投注大球的回报总数额为:
9 N) _! f( d( ]% l- fK=0 D0=0
$ i& X1 g0 `7 V" G- p, u. OK=1 D1=0 $ ^$ t+ q# v+ k1 ~- q$ O/ D* w" u# h
K=2 D2=0
/ t: x: m! T& B8 }$ x0 TK=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), a' |9 d' s# t; ]7 q1 X
K=4;5;....x D4+= {Bo* O 9 q* w* I1 ~+ o9 Z
/ V% F0 y3 g& H. e: m& P9 U( @* M4 e( {: `
投注大球的期望回报总数为:
3 B0 ]9 X/ R8 S m: E ∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3)" m8 i+ d9 {* g- p; K% a0 f
= P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)/ I% O/ d2 |/ P9 x6 `2 z
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。$ F! j$ e8 N. `( M5 L' i
∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo s a& Q% a$ q) U
P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=1
8 ]2 x1 {; ]" G/ R/ s$ V9 }* H F O*(1-P0-P1-P2-P3+ P3/2)=1- P3/2* a" \8 ~- l. b$ |
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2)
+ h0 d0 N9 f" R
( A! x' q! D+ f) y在大小球盘为2.5/3球时,投注小球的回报总数额为:9 q8 O* F' w9 j
K=0 X0=Bu*U ' ?5 F& {3 m6 Z x9 ]
K=1 X1=Bu*U " }9 b8 H7 g' e9 z) M
K=2 X2=Bu*U * e5 V! _6 h+ g( r1 d5 n
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)) { [- Z' d/ a
J=4;5;....x X4+=0
* w2 D' Z- q( k5 z% N) E* O$ k
7 m v% ~8 R8 y( a0 P6 _投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/27 R7 M, `6 Z- @% F
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。1 o( W3 Q, s# }1 `- N" E# T% }
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu+ y7 s( I! Q5 ]4 `
U*(P0+P1+P2)+P3/2=1
0 \0 n/ M/ ^+ o. L: u( q/ B9 C 在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2)
# r! p( n& `% t2 K# \
8 g! m1 S$ s8 V$ T4:大小球盘为3/3.5球(G=3/3.5)/ ~+ W& q p1 u, p7 a5 m9 H, y
( l6 w; k* c' l/ n
在大小球盘为3/3.5球时,投注大球的回报总数额为:
4 E. p; E" ]1 P0 U/ a' Q8 MK=0 D0=0
" U. N9 L# S9 UK=1 D1=0
3 t0 c z1 M% N+ G2 jK=2 D2=0
. D# Z( H; d+ 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)
( Q; J* W+ o/ TK=4;5;....x D4+= {Bo* O 3 U# s6 B' Q, t, K( L
7 s4 r. ~% Y: t$ x投注大球的期望回报总数为:
4 F) e0 C* C z8 Y8 A. C; P ∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3)& e- |7 O1 Y6 J# |9 s4 U' h
= P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)
! I( {- |! ]3 [& J3 h9 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。
( p# P9 ^5 u$ b% F6 Z: O' M. G ∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo
& O' k6 c$ N. v' R# s* C P3/2+ O*(1-P0-P1-P2-P3)=1
$ n" A8 S$ h, u( A& `9 V/ I* C2 q O*(1-P0-P1-P2-P3)=1- P3/2 n& O2 _6 n& b+ |/ ?
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)
0 o' Z8 f2 R# P- a 或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)
# g' S8 M% {! P }
l, O3 L3 I& l在大小球盘为3/3.5球时,投注小球的回报总数额为:8 N; l5 t: V! W) x. k, ?% u
K=0 X0=Bu*U 2 _8 I: G N# w
K=1 X1=Bu*U . D1 J( }# \0 @4 e
K=2 X2=Bu*U & k+ W3 r% C$ x1 J
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)% L' D4 k# o) B5 n3 h6 T, O
J=4;5;....x X4+=0
5 }5 ], g9 i3 U
- E/ t& J2 P% O7 i k投注小球的期望回报总数为:
* g, V$ d8 T& T" \. G ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2
8 I5 E* R [3 l& o% c0 i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。
' {; l6 j1 J- ] Z, M5 f2 @8 F ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu
2 J/ f% K% f- S! H0 t V5 L U*(P0+P1+P2+ P3/2)+P3/2=1
% V- r& E+ T2 O- B 在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2)3 f8 t/ |' w3 }/ g: J8 r3 }
5 q, f. M9 P, P' B6 Q2 \ I3 [
P7 `' i1 \) C; D2 F3 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.
( o3 `5 e7 o4 a$ _4 g- c. _ o+ O; [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!" p1 d" X; |' j$ [; W
3 U+ P+ _* i( @2 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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