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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。3 N1 t0 \0 T2 P* L$ S& j
我们先引入下列符号:
: V# r, B7 M, @: `, K- n% R/ q. DPn(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。2 E2 ]# P1 P' N* x b
即:P0=全场进0球的概率;P1=全场进1球的概率;……。8 I$ M1 z G- ~# y: X5 o* P
那么 ∑Pn=P0+P1+P2+……+Px=100%。# @0 L/ n. {* R; G* J7 u- `# e
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。' c: V6 o6 L3 r$ R9 @: `* ^; s" l
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。* A1 J- d0 B2 Q' m# ~
6 Y7 x6 m" u1 w9 D' ?$ R4 @; H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。1 Y. S( K4 Z7 K" _1 @) L
在任意盘口G下,全场比赛会出现如下3个结果:% l) u$ E" S+ m$ V1 d9 P- [
1:K>G 即出现我们通常所说的大球。
" i1 F+ Y3 Z: U0 e9 i* V3 S+ a2:K=G 即出现我们通常所说的走盘。
& @- M; t" b y% e. {6 `3:K<G 即出现我们通常所说的小球。
2 M0 h0 k1 Q) s! V, A# Y8 s+ S5 e7 T7 ?/ M) _$ |) p
那么在此盘口下投注大球的回报总数额为:3 T* \+ K4 E0 y# W- J0 u
D1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。
( Z8 s! L5 }/ v) a4 ^. qD2:(K=G)={Bo 即走盘退回本金。
$ U8 k, ~. ~, W! {0 |2 cD3:(K<G)={0 即输盘失去本金。
6 |% G1 S- _& w/ A) M) s# `! i I" \& K0 m9 L, N
同理在此盘口下投注小球的回报总数额为:: s0 o( Z I$ ]$ k9 W
X1:(K>G)={0 即输盘失去本金。- Q) {9 _: J. S. s( F5 V J( R
X2:(K=G)={Bu 即走盘退回本金。) v) _5 l# H) h5 p5 M4 @
X3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。1 R" Z9 X( B3 W# L4 R7 M" u
& p# n7 L6 h/ c- `3 M
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。
" C; T' N* a; q
! {' e: t+ f$ h4 `1:大小球盘为2.5球(G=2.5)2 T* ?) J' z' Z$ R: E
/ ?# B+ L' L$ C# ?5 ]
在大小球盘为2.5球时,投注大球的回报总数额为:( R. b, B _. h7 z. {* k& z
K=0 D0=0
2 V7 D) f9 ~" g: q7 kK=1 D1=0
& V& M! Y/ V, o& S* bK=2 D2=06 w+ L' P# M. T
K=3;4;....x D3+= {Bo* O 5 v8 Z, E7 J; r* x/ c
4 g2 N- k' d: N! ^6 z, E% ]- l
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)4 e& s- | A% @' T* G# B. T5 ]
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* a+ y/ g2 k: q5 x
∑D=Bo* O*(1-P0-P1-P2)=Bo4 P5 W8 R. E0 O5 O" E
O*(1-P0-P1-P2)=1# u b/ U/ s8 X5 J& D) }: F+ I1 b
在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2)% S4 ~( N+ e8 b- p
或者表述为 O=1/∑Pn----------(这里n=3;4;……x)
( n3 g. F* _! h+ C: x( k( Z/ u* m' w
在大小球盘为2.5球时,投注小球的回报总数额为:. X: _- e9 _/ K, y6 J# u& _. l) G, @
K=0 X0=Bu*U
+ m7 A. V$ w' k% [K=1 X1=Bu*U
4 a7 V; \* a# ]3 }( A( Y" ~K=2 X2=Bu*U ; W. u; a# M+ T7 T1 a0 c
K=3;4;....x X3+=0+ `0 G P8 o; t
5 r7 e6 g0 N7 P; X+ S+ [投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U% l1 E# j# a# K" u& I& G: ^7 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。
/ ^, r( {$ r k( v, l( W$ S) Z ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu
" D5 A; D2 }5 ~5 {( F. S- w! x) ?, i U*(P0+P1+P2)=1
% o- D; g. d& H 在此盘口下,小球的赔率为 U=1/(P0+P1+P2)
- s$ e+ S1 n, ^- G0 p
3 D3 l; O2 G- w, }$ @8 p2:大小球盘为3球(G=3)
; e6 T: P+ D! Y! c. N& W! H" \& [& o O/ |6 w/ g
在大小球盘为3球时,投注大球的回报总数额为:
! v* S; X+ P. Z0 D! k& n/ {K=0 D0=0 + F/ W5 y% H! v- ]8 F' z
K=1 D1=0
# _+ l( y4 t' p) d# P8 k9 rK=2 D2=0
$ `- q+ e c- ]) pK=3; D3= Bo
+ k$ S9 G+ R6 m5 p6 H6 n; FK=4;5;....x D4+= {Bo* O
% x- B8 K6 t% d- Z* T1 w8 i: ~; M- K# W# x: d$ K
投注大球的期望回报总数为:8 G8 j: p6 i: d! c Q) d
∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3)& w6 ?7 m8 t2 e% a
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。8 h k1 t( M a1 D& ^
∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo8 T2 t' e. \. E' [
P3+ O*(1-P0-P1-P2-P3)=1
2 R. \5 V+ T P7 ~% i: [ 在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3)% k1 Q. }% S& E T4 d7 H, y
或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x)
$ R1 E1 F. S7 J( ^; A& F& ?& G6 j" l# a/ |0 W( [: e+ s. f c# p
在大小球盘为3球时,投注小球的回报总数额为:! B; p+ i- x9 T/ c
K=0 X0=Bu*U " [8 @3 G/ Z0 E" s& V
K=1 X1=Bu*U
* H, ^5 p P) {; XK=2 X2=Bu*U
1 V( V$ R& X7 J- C" yK=3 X3= Bu
! H5 ^! @9 ^6 X( O$ aJ=4;5;....x X4+=0
1 i- |& a( h9 q' P( |# v' j2 i
; {; L2 c/ m8 Y2 T0 F6 ?, W/ s" ^投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu
4 o- A5 {1 k, \# s+ 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。
) X$ X* v5 ?* U ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu
1 o, X d# i. M1 }# d+ c9 y" s6 g: E U*(P0+P1+P2)+P3=1
5 `8 J+ \( ?/ s 在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2)
8 w+ y) V4 M3 H, _8 D: F6 d& J+ V6 Z* S7 B" E' p
3:大小球盘为2.5/3球(G=2.5/3)$ T& b/ Y6 Y) U* i; F! I
& @% X" x& \! c0 H在大小球盘为2.5/3球时,投注大球的回报总数额为:
; ]$ Z" u! u& w* M n$ ^* |% U' nK=0 D0=0
* y. V( ~) D. u/ [K=1 D1=0 " w9 j' F- `6 q- \2 x1 T3 i) }
K=2 D2=0" b# d( ^" P* _+ {" r2 d: \- ^/ f
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)5 ^, }# X6 u" O, q2 }( s
K=4;5;....x D4+= {Bo* O
* R1 q( A( l8 |: E8 [- Z6 F2 ]8 r! A$ E2 A5 v! c1 n2 s
投注大球的期望回报总数为:
( R3 R+ a: R% ^- {; V5 i6 [ ∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3), V* K- j: d) X2 Q# I5 B& N+ z5 z
= P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)
( j9 [7 C" b. n9 g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。
% D0 [, [9 e, o ∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo
% n& t5 g p( T1 a0 D7 I9 G$ H* L' m P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=1: j$ V- j! v; Z; ?% F
O*(1-P0-P1-P2-P3+ P3/2)=1- P3/2
+ s3 m0 O# Z% q" S- A 在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2)
0 M k/ h" U$ f
8 M- R/ [. X# [ \# T在大小球盘为2.5/3球时,投注小球的回报总数额为:
" L' Z% Q2 ~* G" X6 \& \6 d) Q& f# wK=0 X0=Bu*U # l$ E9 n! D1 Y( J; z/ [( l
K=1 X1=Bu*U * b% @, G% I& |: e4 k7 K' a- \
K=2 X2=Bu*U 9 A! `7 P u. I! h& K
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)
) u, p$ [9 k0 Q. d; \8 w8 T( ZJ=4;5;....x X4+=03 j! G2 n2 c0 r9 Z
5 u- w+ {" B! J$ j* |# _. o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
1 a8 T% c. e2 p ~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。
% M8 j4 M1 X3 ~- D. I ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu
, Q! S% H. W5 {' D U*(P0+P1+P2)+P3/2=1
0 n% X, f* E" C- _4 A 在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2)
+ F3 k" b: s1 O3 C* F; L5 Y/ q
# ?# ~# O+ _0 Y' H' S$ @( ~7 Z4:大小球盘为3/3.5球(G=3/3.5)/ I% }# w0 s3 f, i
* h4 b% ~ X: ]. A8 f" m/ h
在大小球盘为3/3.5球时,投注大球的回报总数额为:% F4 L0 t: j: @" b' Y+ R. G
K=0 D0=0 - @: J5 r/ Z! K, n4 E
K=1 D1=0
# M/ Q9 F2 R# s, Z5 {$ `8 R! YK=2 D2=0% W' p+ y5 T$ |; ?( G; P
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): k/ M, E$ y3 f3 e5 X
K=4;5;....x D4+= {Bo* O
. K) N$ N# }! Y" y' j; s0 x% w0 e8 P9 z" S6 S' z( V
投注大球的期望回报总数为:
0 z* A# ]7 F. E1 x2 C! ?& q' K5 O ∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3)
0 a& D: A1 h$ d6 r# S. { = P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)+ A" a) |' `2 O% W" 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。* b2 G8 h0 c7 }# p
∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo C! d- a6 r( K5 K
P3/2+ O*(1-P0-P1-P2-P3)=1% b6 K$ {" m6 d- k0 {* j' F7 F+ `
O*(1-P0-P1-P2-P3)=1- P3/28 Z4 m. w5 x# U0 v( r. d
在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)# I7 B" @* C/ r; k0 g: H
或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)$ V4 f9 Z, ?9 d2 I& ~# ?: L
: d: f) S+ ^& N
在大小球盘为3/3.5球时,投注小球的回报总数额为:
) Y P2 ]2 | S2 hK=0 X0=Bu*U
. ~- E. S" g; x/ k7 ^' PK=1 X1=Bu*U
4 z: M, Y9 X+ s1 Q& y# UK=2 X2=Bu*U
1 P7 B5 Q( m3 `, FK=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; v1 z' v$ WJ=4;5;....x X4+=0
& R" }0 s/ {, p7 [- \7 M K$ h+ t3 ` a+ ~! I: Q
投注小球的期望回报总数为:2 `3 I: u' Y5 O
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2# w; j" s. l0 n: S9 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。, N, A- E0 C$ j- N1 q
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu
. |# Q9 G( \% U8 ]( ]0 x$ C U*(P0+P1+P2+ P3/2)+P3/2=1
4 f; h9 p- |! e3 D# \' F 在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2)/ Q/ q9 h8 B4 l3 P) F' @4 Q
# B' p2 V {1 l; T2 H
' n8 A+ Y. k! h4 t2 J+ m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.
) t* o9 R; f5 Y& |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!
" z$ E' \ g; B9 U0 W: r* g3 N/ ]# @: n' [" l$ o3 p4 J" l
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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