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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。. d" Q/ y! a& b+ u
我们先引入下列符号:5 _1 {4 `( K7 E% A; H" F- w
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。
1 v0 i( H2 M% T3 e) A/ {即:P0=全场进0球的概率;P1=全场进1球的概率;……。+ Y: k# O1 i' e# h3 _6 i7 J; E) J
那么 ∑Pn=P0+P1+P2+……+Px=100%。4 x! y8 k- j6 Q k, x7 T: C( r* R4 g+ V
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。
( g4 g- D% P; z z% ?2 @# 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。- c7 z& T& f& l( N3 U; Q2 v3 X
" N7 p% a, W; {! 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。
* Y8 T R# q: [在任意盘口G下,全场比赛会出现如下3个结果:# q) I% k8 m6 C4 V2 d/ q
1:K>G 即出现我们通常所说的大球。
8 `5 P# J; ~( i* Q3 P1 B4 P* ]2:K=G 即出现我们通常所说的走盘。& r x5 P% K, H9 o& \9 g6 r! p
3:K<G 即出现我们通常所说的小球。
1 }) `6 n: e% U ^% S
* K+ D3 K1 V$ A那么在此盘口下投注大球的回报总数额为:
2 G8 i+ O0 |2 P4 \. SD1:(K>G)={Bo* O 即赢盘获得与此盘口相对应赔率的回报。
- x6 p0 h( h0 k2 CD2:(K=G)={Bo 即走盘退回本金。3 |% ~6 n, J) a5 ^ @
D3:(K<G)={0 即输盘失去本金。7 c% s- L3 s( I1 F v. Y
4 _2 w0 i" D& f6 \
同理在此盘口下投注小球的回报总数额为:# I0 `0 v3 _! O4 o/ s
X1:(K>G)={0 即输盘失去本金。7 `( }4 z }- w
X2:(K=G)={Bu 即走盘退回本金。# F+ b1 \4 x9 s- L% K
X3:(K<G)={Bu*U 即赢盘获得与此盘口相对应赔率的回报。; j6 ^/ l4 z3 o5 N
8 D4 }* Z6 ~% n# W/ }
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。
, _( M3 s" w l; Q
1 ^7 ?5 t- T* d# f' `" O) [1:大小球盘为2.5球(G=2.5), t8 H/ ]. l$ S$ }/ b6 f9 J+ f
3 j. d& l7 o+ Y2 f1 I
在大小球盘为2.5球时,投注大球的回报总数额为:1 O5 O( H$ ]7 H5 ^' |0 G( x
K=0 D0=0
* H- B% N0 r' F& {K=1 D1=0 / |9 l% `8 D* G6 y& Z" x* Y
K=2 D2=0 W$ q. w' K' k' R5 t
K=3;4;....x D3+= {Bo* O 9 h& I8 s- }$ a! G
* d$ o4 r) M. q3 i1 G7 p; o) V
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), _7 \1 U, z l9 o g2 W: P; o& e; B
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。3 Z- u: \ H+ n( T9 x
∑D=Bo* O*(1-P0-P1-P2)=Bo
2 V W2 s$ |) d# m O*(1-P0-P1-P2)=1
. Z; n# V) X$ a4 O 在此盘口下,大球的赔率为 O=1/(1-P0-P1-P2)
& P1 y9 O. r6 w; j( l$ v0 _* Q 或者表述为 O=1/∑Pn----------(这里n=3;4;……x)2 N2 r5 c8 b, C: v+ f$ h
, S5 U7 G4 c& o+ l在大小球盘为2.5球时,投注小球的回报总数额为:
$ l* K% m: A: x# o/ P( kK=0 X0=Bu*U
1 c* c+ z4 X3 k1 t6 BK=1 X1=Bu*U
8 d4 _& _ }* L" R# p4 PK=2 X2=Bu*U 9 n3 @: g* s$ _' ^. z" w- ?
K=3;4;....x X3+=0
5 K$ M" j- \; r6 A: w/ N/ W, N8 g
投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U
" I1 m2 `, R* v- b7 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。
; J; @+ b+ n- H8 a! f; v" C ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U=Bu- W t1 _- d/ ^) N, N% p1 P
U*(P0+P1+P2)=1- c! O& A# l+ M1 W. S& o) g. P' G" e
在此盘口下,小球的赔率为 U=1/(P0+P1+P2)* D. a( t3 R& k% H; @; H% r' ^1 f" U1 P
4 B3 f; i: b1 b! X. P1 B# e
2:大小球盘为3球(G=3)+ o/ p9 Z+ j! J0 f! n! P7 L$ W/ Q6 a
. s2 y, S' M# E, O( R7 ?; M6 U; r在大小球盘为3球时,投注大球的回报总数额为:, u/ a# X) e- s: `/ O, K' f) a
K=0 D0=0 * z/ ^% W7 }5 [9 @3 n1 S
K=1 D1=0
2 B1 { S7 T) q. ?1 ?5 @# X% ~$ dK=2 D2=0
9 \6 N" k' |: TK=3; D3= Bo
5 \ h' @9 J" X* I KK=4;5;....x D4+= {Bo* O
" \, C( s; F$ v }" M* V( A
1 V. x. o' r U, \投注大球的期望回报总数为:( t$ Z4 s. C8 }) s; C( A) y/ [
∑D=P3* Bo +Bo* O*(∑Pn-P0-P1-P2-P3)= P3* Bo +Bo* O*(1-P0-P1-P2-P3)
% k' M# `* C- }4 E7 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。- n" Q- S% {5 ~ d, G* z
∑D=P3* Bo +Bo* O*(1-P0-P1-P2-P3)=Bo# _( E# l3 v. l' U8 O) ~: {! g( x, J
P3+ O*(1-P0-P1-P2-P3)=1
7 p i- }- M( q 在此盘口下,大球的赔率为 O=(1-P3)/(1-P0-P1-P2-P3), Z2 f& x' k# V
或者表述为 O=(1-P3)/∑Pn----------(这里n=4;5;……x)6 J4 B3 B2 w: b2 E e& ~
& M% w6 B" \% Q8 G9 L# ^8 {在大小球盘为3球时,投注小球的回报总数额为:
% E/ g, x9 J% o/ j% G- q& AK=0 X0=Bu*U 4 [! Q' L) P, R$ J: ], a* D& v
K=1 X1=Bu*U
1 ], }: Z7 P0 a, V" v1 P4 c3 Q& QK=2 X2=Bu*U 7 k2 U- N3 ~4 T2 m- s% f, }
K=3 X3= Bu
, f. m4 u& h7 E4 j k# SJ=4;5;....x X4+=0- h: {# R) {" @* e9 V
- P8 F" L; [" u! ^% W6 D) n投注小球的期望回报总数为:∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu
+ G; V% V8 V( [2 Q# 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。
6 F& p% |- e1 \2 V9 ~2 T ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu =Bu% w# l* D T! H0 H; l% P! ?
U*(P0+P1+P2)+P3=19 p" }3 a( g- _0 g) k
在此盘口下,小球的赔率为 U=(1-P3)/(P0+P1+P2)
' P. M6 ]$ i3 x, N. F. A h+ I/ ?" [6 m6 @6 t" e }3 R
3:大小球盘为2.5/3球(G=2.5/3)1 z [. f5 }& a' I+ M
3 ?; z! b1 V; S4 g在大小球盘为2.5/3球时,投注大球的回报总数额为:
, L( O: S0 b0 d6 d: c FK=0 D0=0
7 ~2 G* a% |' j9 tK=1 D1=0
/ C; F8 r1 |& Z. ?9 Q tK=2 D2=0
& d1 V: \4 l4 O5 VK=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)) @1 `6 z l% |) P9 j
K=4;5;....x D4+= {Bo* O - V3 s& q: O% D( V9 A
3 x+ S% B! f, `8 v投注大球的期望回报总数为:
9 _& Y* I) u) c6 G! k* T% A" x ∑D=P3* Bo/2 +P3* O*Bo/2+Bo* O*(∑Pn-P0-P1-P2-P3)
8 ]3 c7 w+ _+ s = P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)
& r, e" ?- s2 R: o+ t" i# 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。
/ k. l$ ~ [8 A" s0 n/ [ ∑D=P3* Bo/2 +P3* O* Bo/2+Bo* O*(1-P0-P1-P2-P3)=Bo
% ^3 _/ e* g/ M1 R V9 N G P3/2+ O* P3/2+O*(1-P0-P1-P2-P3)=14 f" |4 ]; E- G1 o' B; h# G2 A
O*(1-P0-P1-P2-P3+ P3/2)=1- P3/2
: P' n* i. z( S+ p7 h: W5 P 在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3/2) , p& Y0 N9 ]* u
" ]( l, Z' i7 U/ G: z6 K+ x2 {在大小球盘为2.5/3球时,投注小球的回报总数额为:( T2 H! P. e& Y6 k
K=0 X0=Bu*U ( u) ~- r5 r5 z: }* Z
K=1 X1=Bu*U
. b$ I( q) I/ w: b0 xK=2 X2=Bu*U : w5 p% N9 j6 W5 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)
+ P, B* g% @ Q/ a2 X, rJ=4;5;....x X4+=0- V( n% z. F f) ?; F
; ~5 W0 L0 [+ _$ P ^4 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/2
, M% S; s. b. _% c y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 v/ x. P2 Y' N/ _$ M. n ∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2 =Bu* q3 _# I% _: p9 U' ^
U*(P0+P1+P2)+P3/2=1 j S Y$ Y4 |
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2)$ ~& J) C) m$ Q3 d4 c8 I1 e0 }
: c1 Z! X1 H* U: `2 n. w. |4:大小球盘为3/3.5球(G=3/3.5)
* r; r9 V o2 \ t% m5 }- I1 I" P7 ?. @& k3 Z
在大小球盘为3/3.5球时,投注大球的回报总数额为:
8 l0 v; v% u+ {( t `; XK=0 D0=0
3 A2 p& e6 R0 o) K5 }' oK=1 D1=0 ; j. g4 I9 e; U
K=2 D2=0+ d' b% i) u( E0 J6 ?1 e& R
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)/ b% e/ ^6 v! Q& L# I) T5 q9 c
K=4;5;....x D4+= {Bo* O
I/ o$ u* q; ]& t' e" X2 G' _/ z7 q/ C. `
投注大球的期望回报总数为:% r# H, t; j! P
∑D=P3* Bo/2 + Bo* O*(∑Pn-P0-P1-P2-P3)
G. _3 I/ o! _- M% _& F = P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)) |; T5 l* r; {) e3 m4 d
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。
. m9 N. c& D/ R' P" X! k% H. a ∑D=P3* Bo/2 + Bo* O*(1-P0-P1-P2-P3)=Bo# }$ }! z# K# u6 Y9 o) n
P3/2+ O*(1-P0-P1-P2-P3)=1% b1 |$ a7 ?! ?6 s# s
O*(1-P0-P1-P2-P3)=1- P3/2
8 @9 G1 b7 `+ a; I4 t 在此盘口下,大球的赔率为 O=(1-P3/2)/(1-P0-P1-P2-P3)
1 k+ c, M8 y" q, f& @1 D4 Q 或者表述为 O=(1-P3/2)/∑Pn----------(这里n=4;5;……x)
~# y `" f v' E! |2 H8 z
8 k1 D# I% N1 \+ k# H, l在大小球盘为3/3.5球时,投注小球的回报总数额为:
9 u1 L4 W. N7 f& m) L; PK=0 X0=Bu*U 9 N- c8 L7 C# s* W7 b
K=1 X1=Bu*U
9 e! z' G& [- N+ ]K=2 X2=Bu*U $ T6 ^, E0 G, j- @! c& [9 Q6 h0 D
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)
" _% b& k; \, I! PJ=4;5;....x X4+=0" W5 C3 J, b6 N& W+ |2 v% U T
% s2 n& |7 @5 r/ U( z
投注小球的期望回报总数为:4 v8 A8 E1 y0 ?
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2
! m$ U' D1 O, c- b( a- \) H0 O2 D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。% T- Y+ ^: |" t% h6 I" `
∑X=P0*Bu*U+P1*Bu*U+P2*Bu*U+P3* Bu/2+ P3*U* Bu/2 =Bu
1 B. J0 |2 w% Q* _7 R; M U*(P0+P1+P2+ P3/2)+P3/2=12 |1 e0 C$ @4 O- k. q
在此盘口下,小球的赔率为 U=(1-P3/2)/(P0+P1+P2+P3/2)
K' v+ N, w y! L' Z& G
- U/ u+ g, S0 C0 n- ]- `8 |: E+ N4 r2 P! v
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.
% o& Z. D2 s* s' k' l: d$ z6 U: s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!
2 M, y' m4 [+ w, @% v$ w) V
4 u o# z* e. F) mP0 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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