足彩中的让球+1和-1什么意思?我这样是买了乌拉圭和

时间x09更新x09一球x09半球/一球
x09 x09主x09盘x09客x09主x09盘x09客
2012/06/16 17:58(新)x09赛前0小时1分x09x09x09x091.77↓x09半球/一球x092.09↑
2012/06/16 17:32x09赛前0小时27分x09x09x09x091.82↓x09半球/一球x092.04↑
2012/06/16 16:15x09赛前1小时44分x09x09x09x091.88↓x09半球/一球x091.98↑
2012/06/16 15:47x09赛前2小时12分x09x09x09x091.94↑x09半球/一球x091.92↓
2012/06/16 14:51x09赛前3小时8分x09x09x09x091.81↓x09半球/一球x092.05↑
2012/06/16 13:36x09赛前4小时23分x09x09x09x091.86↓x09半球/一球x092.00↑ ▼降水
2012/06/16 11:47x09赛前6小时12分x09x09x09x091.93↑x09半球/一球x091.93↓ ▼升水
2012/06/16 08:58x09赛前9小时1分x09x09x09x091.88↑x09半球/一球x091.98↓
2012/06/15 16:41x09赛前25小时18分x09x09x09x091.76↑x09半球/一球x092.10↓
2012/06/15 06:22x09赛前35小时37分x092.01↑x09一球x091.85↓x09x09x09 ▼ 升盘
2012/06/14 23:14x09赛前42小时45分x09x09x09x091.72→x09半球/一球x092.14→ ▼ 降盘
2012/06/13 06:32x09赛前83小时27分x092.00↑x09一球x091.86↓x09x09x09
2012/06/12 19:42x09赛前94小时17分x091.96↑x09一球x091.90↓x09x09x09
2012/06/12 19:30(初)x09赛前94小时29分x091.92→x09一球x091.94→

　　你应该知道，样本空间有离散型的，也有连续型的。像你说的，不是9场就是10场的情况，就是属于离散型的。而要考虑9到10之间的任意实数对应的场次，那就是连续型的了。
　　从概率论本身而言，这完全没问题，但关键是你得对你的样本空间赋予明确的定义。比如：9．5场究竟代表什么？这类样本点的概率又代表什么？——这才是最困难的地方。...

John knew that there was no point in being given to the lottery ticket.

3串7是：投7注玩3场,俗称3串7,7注是这3场中3个单场,和任意2个单场的2*1组合和1个3*1的组合.

这是组合数,不用排列顺序.
楼上 tanyue95 有误,应该是：
C(10,6)=（10*9*8*7*6*5）/（6*5*4*3*2*1）=210
所以总共是210组
我知道你的意思了,足彩选10场买6串1,一共是210注.

3的14次方分之1

1.The speech he made mainly emphasized the importance of protecting wild life animals.
2.John doesn't understand what the point of doing soccer betting is.
3.Whether you can stay or not is up to the principle to decide.
4.Only by daily exercises can you stay healthy.
5.To become pretty,many people especially young people are willing to go under the knife and endure lots of physical pain.
6.Doing aerobics can help to regulate the heart rate and lung function.
7.The city suffered severe damages due to the earthquake.
8.What he says does not agree with his action.
9.Thanks to her plastic surgery,she now look as if she were
5 years younger than her actual age.
10.Aerobics usually have underlying rhythms.That's why everybody do workouts with music in class.

每场都有3种可能,
全部猜对的概率是1/3^13

几串几是指针对玩北京单场的玩法（简称北单,又称单场）,但没有5串11,只有5串6,5串16,5串26,5串31,就是选5场比赛,5串6是包括（5个4串1和一个5串1,最少中4场就有才有奖）,依次类推,

真是一道好题目,我猜想：系统是希望平衡你在两个奖池的奖金总额,这时候你的收益比较稳定.
也就是要让 x+y=50, 且 5.18x=14.80y,
解这个方程组,可以得到 x约等于37.037,y约等于12.963. 没错,就是这样.

大概是13分之1的7次方,望采纳