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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。
& u$ a4 p5 o' C$ J我们先引入下列符号:
8 `% P7 r# s% |# Z; vPn(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。4 c. m1 o* _1 h6 T
即:P0=全场进0球的概率;P1=全场进1球的概率;……。, x: l* J+ ]3 D
那么 ∑Pn=P0+P1+P2+……+Px=100%。8 G1 m# M A Z( W) t9 M9 q6 T
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。8 }2 |2 i5 x' p
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。
+ K/ b$ {) ]) Z5 T f
/ U# J8 z3 Z/ c( `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。( A4 [ y3 z9 |/ X6 h% c. i
在任意盘口G下,全场比赛会出现如下3个结果:
: J) Y4 ~ U9 J; ^8 M0 _' `1:K>G 即出现我们通常所说的大球。
5 F6 X0 v5 [$ s5 P5 F# l2:K=G 即出现我们通常所说的走盘。" U4 S! [7 j' J6 E
3:K<G 即出现我们通常所说的小球。6 }6 {" }( k( d1 @" V
8 n! p/ t9 }2 a# f" q" d
那么在此盘口下投注大球的回报总数额为:
1 T2 K" ]6 z) b/ F2 l8 |5 t, fD1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。3 p1 y$ G- }3 ^& W9 e
D2:(K=G)={Bo 即走盘退回本金。
4 q4 h! M/ E4 j+ a7 Z1 ]2 v8 zD3:(K<G)={0 即输盘失去本金。
5 U6 l7 A% F7 v
+ T( T2 A0 @$ t. O同理在此盘口下投注小球的回报总数额为:, l) x$ B" f2 P* a: H
X1:(K>G)={0 即输盘失去本金。0 i5 b4 ^3 d7 |8 C2 M9 r
X2:(K=G)={Bu 即走盘退回本金。2 ?) H% b* g( C1 E
X3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。$ t: {- b# A, f- N+ {( p7 u! j
/ u' ^" Q9 B" c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。$ ^7 \3 k7 @1 H+ {: h
% @$ a' R, E: V/ k* V1:大小球盘为2.5球(G=2.5)# }) ?$ H1 ?% S$ O. n
1 h9 i/ k$ C2 N* W/ L在大小球盘为2.5球时,投注大球的回报总数额为:
1 o) ^* t7 b) t/ y4 QK=0 D0=0 2 @4 h2 m, @- r: v3 h% X: Z5 g
K=1 D1=0 , s& P/ Q) F! `3 ^ ?( w) }
K=2 D2=0
/ t, y+ |( x: N+ \4 oK=3;4;....x D3+= {Bo* O / f6 E% d4 H4 F/ O. P& @3 v
: P w5 p: k9 ]! ]8 z# 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)+ L6 Y# m" V3 Z0 Q6 V$ T$ 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。- J) j/ r9 x2 s/ z
∑D=Bo* O*(1-P0-P1-P2)=Bo
; o" ~- b+ i$ X O*(1-P0-P1-P2)=1" `: N2 E, s# @* A+ Z+ ?4 f x' w
在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2)! {& V( H7 Y4 U) p
或者表述为 O=1/∑Pn----------(这里n=3;4;……x)+ ]* G3 I% W$ W" O
. F$ K' ~- ~2 d: V. o
在大小球盘为2.5球时,投注小球的回报总数额为:, X5 E% X/ @) l# S& x" p% q. G
K=0 X0=Bu*U $ X6 q5 V6 N0 X- v4 g# i" V! u/ s
K=1 X1=Bu*U ) r/ D3 D% E2 f! }$ m
K=2 X2=Bu*U 6 r% E' x+ h( N
K=3;4;....x X3+=0& O7 n$ w2 M0 r" p
: {3 F4 J5 U" F U投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U
0 w: Q# \! P3 w3 X* ~* }; K& 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。" m# ?2 ?" }0 D5 Y3 v4 _. {2 q* ~& ?
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu$ }) l) {& `' C! M0 i5 h t k. j
U*(P0+P1+P2)=1/ u# q! {9 p! f* p% ?
在此盘口下,小球的赔率为 U=1/(P0+P1+P2)
, y4 j9 W5 m0 s ]! [- t
/ F- e" H4 n3 a: D! D+ g' C2:大小球盘为3球(G=3)
3 e* Z5 k5 U( k8 \* j, k: t2 w& T6 O: b. I2 [
在大小球盘为3球时,投注大球的回报总数额为:) x; e5 X# T+ \/ A
K=0 D0=0
% J( `/ ^/ A0 \3 gK=1 D1=0 , P/ b, |& q/ u/ a' ]8 j
K=2 D2=0 j: F' d, A7 L, m* N, c6 c0 r
K=3; D3= Bo
* ^1 c) e! u5 J' j, t* J. ^K=4;5;....x D4+= {Bo* O
8 t$ ]* i4 m5 ^+ I, U' n& S( w6 r4 i# ]
投注大球的期望回报总数为:
$ T3 ?5 s' c- x# c∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3), ?$ V6 M* v7 R. g3 g$ y l0 I% o0 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。- D d6 o. u5 B( M8 X. R/ g1 z
∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo
( Y. \5 h1 X( D P3+ O*(1-P0-P1-P2-P3)=1( _, ~: q. O% O, @% b4 w t
在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3)
6 @9 a7 L" I1 }4 q+ F* V7 z1 X 或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x)
% c1 c2 Z# |) N% } ]# {
0 j* X! Z: O% v在大小球盘为3球时,投注小球的回报总数额为:0 x1 \/ Q9 G; x2 f6 I" i2 P& v" H
K=0 X0=Bu*U
, {" N& `5 I6 f' @' HK=1 X1=Bu*U ( t0 `& G) V1 r# ]& _" w
K=2 X2=Bu*U
+ e) q. A) P- E3 a# E1 `K=3 X3= Bu+ R1 m. B5 x7 l. I
J=4;5;....x X4+=0' i2 x# o! F; `/ c; p3 S
% x* S) Y- m, 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
" j' U5 W: r- I8 w7 ^! h% t: P& W/ X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。
+ u3 A1 R7 m9 ^! v# t4 d" y ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu- }$ j+ Z8 m8 `
U*(P0+P1+P2)+P3=17 A( r, e# T. O& s
在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2)8 B0 s+ X+ o1 c9 A$ t9 o9 R0 C
/ F( l9 E2 k7 p7 d) H; J
3:大小球盘为2.5/3球(G=2.5/3)+ ]$ h) }3 ~0 u9 B% d8 b% [. V
( L- y. H& k2 l. f在大小球盘为2.5/3球时,投注大球的回报总数额为:' ]" c2 ]6 @" Z
K=0 D0=0 3 A- c0 U) b$ s( y; Z
K=1 D1=0 3 @: U- w/ g7 N; P0 j! f5 u# ?/ s( q8 U' B
K=2 D2=0
! I+ u& \3 v- v! T0 r* Z* U& j7 G# 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)
0 q) ~* j) T: v& mK=4;5;....x D4+= {Bo* O & }& M4 P4 H6 i
6 A9 o0 k" d4 w$ w
投注大球的期望回报总数为:# Z# E* i1 X X& {/ j; I$ P# {/ C
∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3): ~3 i" G1 a+ N- i2 E+ t& d
= P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)
8 V! p) X2 W2 v |6 b& x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。( C8 }) ]4 y* E- E, Y) L
∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo
) {- m* G4 j* W0 |, u- P; r P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=14 a: h! u& V. o' ~) T
O*(1-P0-P1-P2-P3+ P3/2)=1- P3/25 V1 A" |6 L8 |; w
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2)
" L) p3 k4 f9 Z% O2 E) x
3 r$ ?7 Y0 g, Y2 h8 V8 r! M& X% C在大小球盘为2.5/3球时,投注小球的回报总数额为:0 {+ E/ u" F( q& R+ K/ v3 X
K=0 X0=Bu*U
9 q" @2 e( u% _4 `K=1 X1=Bu*U
/ ?. l0 i% i i! `& M- z0 AK=2 X2=Bu*U $ ^+ Q; P9 E+ c! y
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)4 U4 e) _( I% D o" _* v2 l' H
J=4;5;....x X4+=02 i& L* P. P+ V' N; ?4 r+ [
" q/ l) y& M- S' t
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# K& p6 l" E- N. {5 y* `& 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。
9 V6 f, [4 f4 ~# r) r8 l' n7 r* p ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu3 a7 U& J. [% k" ^; C
U*(P0+P1+P2)+P3/2=1& L8 Q3 E1 _% `+ O6 e& |& f# {
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2)
) C. i* _/ z4 [* Z# Z6 E" A1 J" j, l" H" Y
4:大小球盘为3/3.5球(G=3/3.5)! B Y8 |5 g9 s* c' u% j
! N. Q$ c4 [) W1 `7 M在大小球盘为3/3.5球时,投注大球的回报总数额为:: p8 ~: ?4 D& x& E
K=0 D0=0 ' b* \3 B$ l' q, X
K=1 D1=0
% e$ D k- i2 ]8 Z, |" KK=2 D2=03 O3 s3 ]+ z& _$ Q9 f: ]
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)
+ u1 N- G0 s* T2 ]K=4;5;....x D4+= {Bo* O
( i* i$ w, c" D+ l/ J p, Z8 P5 o& ?& [$ i
投注大球的期望回报总数为:. Z" T* a7 U$ G9 J/ G
∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3). I1 E$ N# {. r. N" k& S! d; w
= P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)) v- F& V( ^: k& 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。( |% d) K, V! D
∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo3 E; i/ ]5 T$ }# M4 ~/ c9 z
P3/2+ O*(1-P0-P1-P2-P3)=17 v. R* F! r' p, U, N
O*(1-P0-P1-P2-P3)=1- P3/2! n* d0 K# d# \0 R$ Y! M( G; v
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)! e3 q6 V4 {) G3 o D
或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)
% I0 u1 [/ X7 |7 @, ]+ c8 }* j+ C' ~8 _
在大小球盘为3/3.5球时,投注小球的回报总数额为:/ }) f: I! G$ S; H4 ^2 B2 {
K=0 X0=Bu*U
- j9 a/ g' r# Q/ k8 `1 v3 k \K=1 X1=Bu*U
# b- x! b9 b$ w/ } N, l0 zK=2 X2=Bu*U
; e, c; [5 \% s, q8 i6 Q+ e) xK=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)$ X5 q4 [7 N7 ]% c" ?
J=4;5;....x X4+=0" C+ ?& w- A7 V
, M2 y3 Q7 y. h投注小球的期望回报总数为:# o7 }( l3 H" x. x- j7 S- G
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2
' M+ _) P) B7 r4 @- X8 z& Q$ 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。9 r! f& X5 G8 P3 m+ V# x: J6 A
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu
) D$ u3 E4 J# E U*(P0+P1+P2+ P3/2)+P3/2=1# @* g, V0 B- n
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2)
, Z, }5 ?# Z2 d- ~: I; z) d- j
% H% f- Z6 A: b" V2 T$ ]
* Q, X. ^, H2 E& M+ b4 S6 b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.5 | O! q2 T, E" s& |9 V
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!
* ]) b# H% l# _3 W: B m% _" O3 R# V
* A$ H' b; f* s+ |! a8 l6 J. A, E9 SP0 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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