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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。
( I* b: j" [: v Z8 _4 e9 t3 M, ?我们先引入下列符号:$ D a! r: X* E0 p7 @% T+ C" c
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。/ v& G5 Y4 I& u: D% e
即:P0=全场进0球的概率;P1=全场进1球的概率;……。
( N% @* f% @' e, W b$ B1 {% N那么 ∑Pn=P0+P1+P2+……+Px=100%。
/ o5 P, `# g5 p% dBo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。+ I7 |6 S6 M7 s/ G% ^
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。, G( g c0 l P& B5 o) t, Q* `* q0 |
) s9 K$ v( x5 L, a: i6 L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。
# y. ?- M" Z2 J; m# o# o在任意盘口G下,全场比赛会出现如下3个结果:2 l1 ^+ O- H, W6 p3 W" j
1:K>G 即出现我们通常所说的大球。
! H0 T+ ^- @1 G6 M- f, V2:K=G 即出现我们通常所说的走盘。
. ? d- u. a. J3 f3:K<G 即出现我们通常所说的小球。
3 z7 @% d( S: C4 O; {
' c! Q$ A" N, ~! H% j那么在此盘口下投注大球的回报总数额为:- \: W7 ?0 B: l$ k
D1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。
3 U6 x8 ^9 \2 y8 I" zD2:(K=G)={Bo 即走盘退回本金。
: P/ p8 _ H8 D1 o0 O8 I! e! AD3:(K<G)={0 即输盘失去本金。& P! g5 X q! T
# N5 L% a6 o: l( {7 ^. s同理在此盘口下投注小球的回报总数额为:$ W$ y% a7 Q+ [- G' Z9 `3 H+ Z
X1:(K>G)={0 即输盘失去本金。) [6 ~5 V6 B0 g% j. c
X2:(K=G)={Bu 即走盘退回本金。& z- `% _" g' ]) w7 t' y9 `
X3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。2 [, }5 \& \+ h* e3 }, b. r" G" ~
# w2 s+ [& V( n2 k2 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。
$ y: Q3 |9 F5 T# m" T% g3 S; ]" D& W
3 u5 E4 ^' n1 w7 t3 J1:大小球盘为2.5球(G=2.5)' I5 F) i4 ]+ l8 M: m
; U1 C! T# L, U: T9 K在大小球盘为2.5球时,投注大球的回报总数额为:
4 B5 q, r. g; r4 A5 V$ r: B. T$ \0 gK=0 D0=0 ! w" y" h7 Q' M+ d
K=1 D1=0
/ { ]0 I) s t0 {5 F( y# {) qK=2 D2=0
% ~$ h+ O' e; }$ oK=3;4;....x D3+= {Bo* O
! T5 U$ q+ V( {4 P/ u6 r
+ V# r5 ~; e# f2 j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)
9 [$ F" j/ F# u) x9 ~# u7 }+ l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 X0 S5 h% V$ J/ u( m ∑D=Bo* O*(1-P0-P1-P2)=Bo. m: Z9 `, Q! Z$ m/ j
O*(1-P0-P1-P2)=1/ j! M' g) m5 T- D
在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2)% X7 ~ S2 p: ?1 {' C
或者表述为 O=1/∑Pn----------(这里n=3;4;……x)
0 R6 Z& k. z5 f: m7 x1 B- q6 y' t
# o% N* _' V W& s" t在大小球盘为2.5球时,投注小球的回报总数额为:
( O. R' V7 [5 i9 h$ Q' uK=0 X0=Bu*U
. G0 g' {' v/ [8 `K=1 X1=Bu*U r- _! r. H- g2 r7 S( h$ [
K=2 X2=Bu*U
8 Q2 N: p. O- [- c' ]& Z, A" ZK=3;4;....x X3+=0$ E& q: [/ ~& z$ E
. C. `6 P$ J- U5 D; S C. M. _( F
投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U
0 Z5 X ~6 K# q& 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。. o* M9 p: z* F6 |
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu% [# s S' `4 V& ]: z) @- M5 Y
U*(P0+P1+P2)=1- l+ Z* n# W9 h
在此盘口下,小球的赔率为 U=1/(P0+P1+P2)
7 h/ \4 T5 V. V4 _5 {% L$ l7 r8 ~" c$ l% v
2:大小球盘为3球(G=3)
: j( ]! ~( w. C% b) r6 z! J
) x4 C3 x! j4 Y在大小球盘为3球时,投注大球的回报总数额为:
+ A1 l* s4 ?4 \9 c4 j9 dK=0 D0=0
% [- W% o+ r& b$ R) i! G6 x# EK=1 D1=0 7 [; N9 } g# ? n. z; Y
K=2 D2=0
" p& x) m3 S7 d% Q& t8 GK=3; D3= Bo
, y9 U* g, {, T3 ?) {K=4;5;....x D4+= {Bo* O 4 X; k& z0 [. U5 p
1 d( V; h( t* z5 b% r投注大球的期望回报总数为:
, N: @* d6 n( Y9 @. j" t' _# b∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3)/ ?/ u( T) N/ a( w( 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 O% B3 J7 ~2 n: O/ s
∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo0 v: b5 q/ s7 g
P3+ O*(1-P0-P1-P2-P3)=1
, \" I8 l5 N1 ` U0 e 在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3)6 i; ?- {% X7 ^- R' `* `& f- c1 ]
或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x)$ r6 K1 T% h3 G( o
/ _+ ] p2 A( e+ }; r+ ^在大小球盘为3球时,投注小球的回报总数额为:0 e: p6 W' @0 {
K=0 X0=Bu*U
. G& d$ C* ?( V; O) `* _6 s, g7 E: U3 EK=1 X1=Bu*U
" O9 W% J6 s3 u7 r: ^+ J2 \8 DK=2 X2=Bu*U # t0 p8 s& ]2 M, H; [# w8 f
K=3 X3= Bu
1 \# G5 Y/ B! \" T2 qJ=4;5;....x X4+=0
/ W1 o( K* E$ L8 k/ [
! J% y% M/ X8 h投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu9 v' g) f3 ^3 ], K* x# Q0 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 o. o6 q* P& m. n- l' ^ c, `; O8 i ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu9 b7 f, ]/ o; g1 u# v7 L
U*(P0+P1+P2)+P3=1
7 Z4 g! v( p+ }9 d- C6 t! d 在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2)# [& E+ E' Y% o- S
' \5 _0 N' c2 e' O
3:大小球盘为2.5/3球(G=2.5/3)4 w+ s' o; x1 s! D8 c9 t% F1 a
- I, m0 Y) E) a; H' Z, a6 g) Z
在大小球盘为2.5/3球时,投注大球的回报总数额为:- g2 l# h, _+ n; F) n
K=0 D0=0 4 z2 ]8 S+ F$ d* E1 [* \
K=1 D1=0 - | t% ]$ A1 ^
K=2 D2=0
$ s1 R" p( V. Z6 ?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)
# X& L( _- M( G% JK=4;5;....x D4+= {Bo* O - u; y/ d) z+ L% u) r v
5 |3 |( g6 _; E5 f* `4 G0 x投注大球的期望回报总数为:) w# b# F$ E; c/ i# _" g6 C
∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3)
) F! N% ~' I5 ?/ o = P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)+ c: ^0 {, _/ W: @: 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。! I% k5 k2 a1 p, V
∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo
* [" Y8 Z+ ~9 v4 E0 _) } P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=16 `7 [% q8 T, q5 `
O*(1-P0-P1-P2-P3+ P3/2)=1- P3/2
' o5 a9 S; k& ]) X0 [* a 在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2) 9 [* L0 k+ A/ v$ Z6 c& `
( j6 y" t7 }( J' g在大小球盘为2.5/3球时,投注小球的回报总数额为:
* L' R) [6 u# i% }" K2 N% i6 c) Z0 BK=0 X0=Bu*U
( b) x: W" [. g( X$ D7 UK=1 X1=Bu*U . E4 q0 t1 c A2 m
K=2 X2=Bu*U
5 g+ g0 x1 k& v5 P9 r0 I8 a; D/ A+ C4 UK=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), |: `5 {$ T9 r: c3 A
J=4;5;....x X4+=06 O; ?$ ]$ u- a. t$ Q+ ?# Q
7 b% A' h" f. H0 B$ h; d: e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: s5 a8 i/ [; T( z; w' \; Q" 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。
* P; ~1 o( e: D @ T% @5 ^ ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu5 w# h+ g# a% Y. \5 c4 T
U*(P0+P1+P2)+P3/2=1
2 I4 e3 n4 `9 e& z& y: H: ^ 在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2)
}9 h: |/ w5 `8 s& K$ B, Y3 ]. \9 f' c8 U/ G. }/ d' [: q
4:大小球盘为3/3.5球(G=3/3.5)* K0 l0 A# g$ k1 l
8 \" W3 A. _4 q/ ^: u2 l2 n+ _在大小球盘为3/3.5球时,投注大球的回报总数额为:
6 B( K& X" r4 e7 ?5 H0 ]K=0 D0=0
9 m7 n! e; n4 bK=1 D1=0 1 x0 z6 a- H& `; L! r# F
K=2 D2=0
6 b8 Q1 a% V; q3 v- P9 d3 WK=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)( C o3 h6 h Q! x: U9 y
K=4;5;....x D4+= {Bo* O 7 T( a. X# {) W
5 w5 w q' T8 f0 \投注大球的期望回报总数为:
5 H$ n4 a6 I: M ^ ∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3)+ s [# R0 K) g3 Z/ x; w
= P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)# ?6 m) Q; v5 G0 Y h# 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。% Q% \9 t# g& h; h5 ], a. C
∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo
$ S& w/ e }" l8 m# v6 Y$ ]2 q P3/2+ O*(1-P0-P1-P2-P3)=1( d' E% v2 T5 S" _; X
O*(1-P0-P1-P2-P3)=1- P3/2# z* e* X/ |6 b! n/ X% O# X
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)
3 Q3 T v8 i# ?2 a/ z 或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)
% n. v# E# }7 [& u Q
9 S- }# q1 k' T" S5 O* L在大小球盘为3/3.5球时,投注小球的回报总数额为:
1 H; e2 f& P! M7 k7 o) `K=0 X0=Bu*U
2 I* A8 J9 C, B0 |5 {7 xK=1 X1=Bu*U
, H( X6 V+ b- V4 ]5 H8 \ i- OK=2 X2=Bu*U 1 G. r, j. H5 [
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)
. D/ d' k, W5 n9 Q9 I0 vJ=4;5;....x X4+=0& V( u' D) y" w+ {1 D% X8 J$ c; U
# @# F3 | e; X" X投注小球的期望回报总数为:
2 n% P! D3 W8 l6 C0 s7 ] ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/21 a) m3 ]- I. {$ Z' `& B5 o 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。/ v- A! c& q b9 l2 G$ n
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu% T6 l( X3 d1 y
U*(P0+P1+P2+ P3/2)+P3/2=1
4 k. ]5 e, M }* p: a- c 在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2)
6 b* u5 R# Q+ m& u3 r! o, N m5 n6 x6 k: G, y$ b
' E7 y& w F1 [+ s9 R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.+ U* _0 y4 `5 h% s3 {8 F7 i! {& ~# ^
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 Q6 b2 G6 D3 F! f" r
& t( r/ O0 a3 k9 s2 R* j
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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