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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。
) m4 _3 l t6 v我们先引入下列符号:
! k: a7 u5 {' q7 E+ u$ _ fPn(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。
( I0 J E' [2 C即:P0=全场进0球的概率;P1=全场进1球的概率;……。6 U4 T9 E* ]6 y: \9 \
那么 ∑Pn=P0+P1+P2+……+Px=100%。5 Q- T) t6 p/ ~$ c; W
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。
& ^" k7 ~; T. v+ n( sBu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。
; |- `- A0 K2 L; V) U. o7 n6 f, w
" M) N8 y6 b& W" V' _1 ]0 m B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。
! C3 Y. N+ \6 @0 G) e% \4 }# ?% t( ~在任意盘口G下,全场比赛会出现如下3个结果:" d/ {# n9 B$ A4 N }* u3 ?1 e
1:K>G 即出现我们通常所说的大球。
5 @( r0 B+ S7 Z3 w9 V2:K=G 即出现我们通常所说的走盘。
+ }$ u4 i% G/ K% s3:K<G 即出现我们通常所说的小球。, z: ]* {& c+ V2 ~" j
$ p+ Z" K; n0 J! ? \那么在此盘口下投注大球的回报总数额为:, B9 `. F. `: n H; S; T
D1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。
4 w$ p8 {% l! t5 K% Y' HD2:(K=G)={Bo 即走盘退回本金。
2 V. x3 J9 v* X- `% j+ d. @D3:(K<G)={0 即输盘失去本金。" C z3 r: e/ a2 f5 l# n7 v) b
7 X/ w% ^- ~9 e. r+ w: K
同理在此盘口下投注小球的回报总数额为: Z- [% C7 F3 M7 ]% I+ R3 _
X1:(K>G)={0 即输盘失去本金。
, d0 r, j) O& vX2:(K=G)={Bu 即走盘退回本金。/ u+ C% P3 B: y% u4 h
X3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。
Z% {8 {# I, @3 @# ~2 X" k8 B" p7 S F! U" K# x. H
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。! s4 L. i9 D5 Q. Q5 h4 L$ V
) Y" y' c9 X7 X a$ J1:大小球盘为2.5球(G=2.5)
b3 ~: {$ B% X
6 l0 N; g; w6 D: r4 t- B在大小球盘为2.5球时,投注大球的回报总数额为:
2 C- _3 [3 x$ y' v* d/ QK=0 D0=0 1 \5 ]+ R0 ~* @
K=1 D1=0 / C4 G: t7 }/ `9 I* D( L
K=2 D2=0+ m- [9 h' ]' k( M
K=3;4;....x D3+= {Bo* O
G( v. B0 T# T q. |3 p4 ]- X \! n0 E. R/ S
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)
e9 Z$ w8 _8 Y4 V8 D+ R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: `: y' `# s: U* w+ D9 F ∑D=Bo* O*(1-P0-P1-P2)=Bo8 u- G) s% Y/ M* m9 q
O*(1-P0-P1-P2)=1* B7 [" q; X& L! ]0 y% e- q/ S
在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2)2 x& t3 c7 a' G% K$ s- q) ?/ W
或者表述为 O=1/∑Pn----------(这里n=3;4;……x)
* S$ \+ {0 }2 ~% e7 O3 g [& d K! e3 U
在大小球盘为2.5球时,投注小球的回报总数额为:
* _; N- P; x9 L. Y/ AK=0 X0=Bu*U
4 Y0 T) ~/ |# |: P( v fK=1 X1=Bu*U
; Z+ K6 ~7 r0 G" U* s4 K0 RK=2 X2=Bu*U , }4 y1 _" y/ t- Q! r
K=3;4;....x X3+=0% F7 | Y! F6 K4 a& ]
1 o6 z* k# g7 O, P& J3 b投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U
+ G2 A/ m7 e. H% k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。
* W5 h6 C1 @3 y4 u, y ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu+ Q* E8 n: T/ M( y5 v/ ?* H/ H
U*(P0+P1+P2)=16 C5 w: {" O3 |0 W5 I
在此盘口下,小球的赔率为 U=1/(P0+P1+P2): D, L0 D0 b' D" p2 p4 |0 W2 q' c C
; {9 R* H8 A8 {0 b0 N4 ?; y2 S2:大小球盘为3球(G=3)9 M' q! o0 C# _* y5 e, S2 t2 U
; P2 {% M. R$ m- b在大小球盘为3球时,投注大球的回报总数额为:$ b# M; w+ c' T9 G% D
K=0 D0=0
. A" _$ @' M# Y% rK=1 D1=0
" }7 S% P7 E/ G+ h9 Y; qK=2 D2=0+ B( ], d7 o' M8 K+ d$ ^
K=3; D3= Bo
) j" \* J7 Y$ K2 e" `, m- n6 X8 }K=4;5;....x D4+= {Bo* O 5 N) o" q# R. W0 h+ u1 s; w
4 M; L9 U* T2 H' e: {投注大球的期望回报总数为:
5 ?* u" D/ U& u1 Y' ?: f% C∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3)7 ~3 S1 W1 j4 M }
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。' o8 z3 y1 y+ V' c }# }7 a& `9 C
∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo. G- d' H3 u+ a' T
P3+ O*(1-P0-P1-P2-P3)=1
$ x5 O+ H8 _$ t# O8 F2 [+ N7 t 在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3)/ J; V0 l4 X3 }! b% u$ P1 L
或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x)6 w, {. N" X% N1 O }9 c3 R( {) G4 W/ X
( i1 B1 h. D8 P) x在大小球盘为3球时,投注小球的回报总数额为:
6 k: Z6 `, Z* G' t- j/ m; ]K=0 X0=Bu*U # n3 W0 x; T. }% C W( `$ h, x, y
K=1 X1=Bu*U
1 }) l9 U$ h/ f( C4 ~, q+ v, rK=2 X2=Bu*U % n1 ~* d: H7 Q0 f( [0 J
K=3 X3= Bu# _* w9 w: ^* U
J=4;5;....x X4+=0
% W& t! z' m4 P
9 U8 K8 Q( C5 j# m+ W4 C投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu
% B, t3 A: N4 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。( H5 G- t# F' o! E5 y
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu! r, O+ ?9 L2 I1 z/ C
U*(P0+P1+P2)+P3=10 @" ]4 x5 m k" C4 J6 E: X
在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2) h+ g$ P# l) d) }6 N; F
7 n# M8 T3 a) M1 r7 k8 o3:大小球盘为2.5/3球(G=2.5/3)
5 p' R4 T4 K+ w! {
9 s4 p) R+ j2 _在大小球盘为2.5/3球时,投注大球的回报总数额为:! l$ q7 K5 K5 X
K=0 D0=0 9 R( ]# b& ~, s3 N! F( Q( E
K=1 D1=0
) j0 C7 E' g0 J7 EK=2 D2=0
- V; r" p, w( S! jK=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)( t9 A, C" _! f( e/ z$ _# ]/ p
K=4;5;....x D4+= {Bo* O
3 N! J4 \% a7 J, F
9 p+ Q) [7 l8 [6 b投注大球的期望回报总数为:3 o% `" g, q! U
∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3)
0 K: n4 |7 C; U = P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)
5 \4 }7 v( V/ A9 K1 a" q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。; G8 t) p0 J; G2 A6 G }# ` d
∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo
" ]! Q4 A8 q; c" }3 v2 h P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=1
$ ]3 r( \2 g* B- @% ` O*(1-P0-P1-P2-P3+ P3/2)=1- P3/2
( t! O. o0 q5 s 在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2)
3 @# N* S% g3 z" ?8 y- x/ O! t" h& q g# _8 B9 N: w: { q
在大小球盘为2.5/3球时,投注小球的回报总数额为:
$ V2 M E( G9 G- R: L2 iK=0 X0=Bu*U
4 ~$ d7 r) S2 l! UK=1 X1=Bu*U
8 k% u$ Z: c, B/ h" `( b8 ^5 S. m8 IK=2 X2=Bu*U ! X4 Q7 Z8 t, H u1 Z
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)
1 G0 w( _2 Y5 n; i3 G$ ^4 k" z& V$ ?J=4;5;....x X4+=09 R# l" X6 |5 Q0 E* H
% \% U* S4 [/ n" S T& F
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
8 ?& E7 b5 F8 \ L+ t$ O! x5 O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 r2 R% P0 t% _ U% D( ]9 l% v1 g
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu+ y8 r+ Q1 h% [( `% ?
U*(P0+P1+P2)+P3/2=1
0 `$ M- [* d& f9 v+ w" ^ 在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2)
9 U" H# ?$ ~1 C
% ]9 ?) S# \" j' [: c/ @4:大小球盘为3/3.5球(G=3/3.5)
5 h7 F/ i; w. W# v% [+ P( q/ @& U# N* G; y$ M$ l/ b9 B6 h
在大小球盘为3/3.5球时,投注大球的回报总数额为:2 J+ a; a8 C$ o0 R% U
K=0 D0=0 / b1 e3 `! a) i6 q2 t
K=1 D1=0
+ }( ~" Z& W2 `+ h$ eK=2 D2=0; f% w+ V2 z* C
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)8 M2 F0 O# Y( p/ B$ `
K=4;5;....x D4+= {Bo* O
3 M, l! w- W/ T- l/ r
$ y9 O% f* W6 ]/ }# u5 w. c投注大球的期望回报总数为:$ O8 W( s* E9 Y/ q4 \, J7 w$ c. S
∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3)( o$ {- _) E. ^# \7 w- b8 v
= P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)( O% Z, ^4 ?8 {4 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。" B8 b2 a7 b" Z& G( b
∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo% `) O4 v7 s `" F& i
P3/2+ O*(1-P0-P1-P2-P3)=1* D1 [6 I$ w% \6 }5 y
O*(1-P0-P1-P2-P3)=1- P3/2
: V6 g6 Q8 I0 G' F; `6 _ 在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)1 g- R5 N( n a5 S7 p! {
或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)8 F) U( |0 e9 V9 m: [7 `
+ ?/ U. _6 M9 p+ H; O* Y6 {
在大小球盘为3/3.5球时,投注小球的回报总数额为:
: c$ r7 e: ]. ]0 B) JK=0 X0=Bu*U ( a# C0 L0 T, A/ ~; z( T
K=1 X1=Bu*U # G4 o& N2 u! ~7 S9 x& j/ F( K
K=2 X2=Bu*U L8 i; D( g7 Y# J0 r) v+ v' 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)! N$ o2 ^0 O% X
J=4;5;....x X4+=0
4 E- b8 y& i9 r- _, g8 r+ M1 f$ N: t3 Z6 i" Z4 d: V1 D- g8 R3 W
投注小球的期望回报总数为:# J7 v: n0 \* p: b7 u: l0 a4 v6 H
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2' ?* d# g: V# i& `2 o) m
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 x" ^9 u% H# q0 Q$ M" Z$ G+ q4 |9 r ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu& @0 |. h9 G0 }* K# ]( ^
U*(P0+P1+P2+ P3/2)+P3/2=1
: e3 ^& v0 o) U. I" M& f 在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2)
9 k9 Y8 I7 Z0 H; W r: ~) f: B
1 L5 j% _! {) y r% ]& u' @4 \! h2 x8 f! P( q2 v/ q2 e0 \
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.7 j" g3 ~) Z- R
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!
( }4 {3 P7 L4 o+ ]& i7 [% T: @/ O: P( S1 W
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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