一个中奖几率是百分之１０的奖卷，你买１０张，不一定中奖。

中奖几率是百分之10 = 不中奖几率是百分之90

买一张不中奖几率是百分之90 or 0.9

买10张不中奖几率是 0.9^10 = 0.34867844

所有跟帖： 

• 这对么？ -让板砖飞一会儿- ♂ (0 bytes) () 07/19/2011 postreply 14:57:46

• nod nod -passers- ♂ (0 bytes) () 07/19/2011 postreply 14:59:08

• NOD, NOD -duck_donald- ♂ (0 bytes) () 07/19/2011 postreply 14:59:42

• 就这么个意思。 -勃事后- ♂ (0 bytes) () 07/19/2011 postreply 14:59:54

• You were saying "中奖的几率是百分之１００"? -duck_donald- ♂ (0 bytes) () 07/19/2011 postreply 15:01:10

• 还是那句老话。抽一次和抽１０次得奖的几率是否一样？尽管精确的计算不是１００％ -勃事后- ♂ (37 bytes) () 07/19/2011 postreply 15:07:03

• He is talking about "buy 10 pieces (once)", we -铁股007- ♂ (73 bytes) () 07/19/2011 postreply 15:02:00

• 还是股哥厉害, 高山仰止~~ :D -passers- ♂ (0 bytes) () 07/19/2011 postreply 15:03:58

• you are 厉害, 高山仰止~~ :D -铁股007- ♂ (0 bytes) () 07/19/2011 postreply 15:06:14

• How did you read this out? -duck_donald- ♂ (0 bytes) () 07/19/2011 postreply 15:04:08

• I can not type chinese now, as two kids robbed my computers...:) -铁股007- ♂ (0 bytes) () 07/19/2011 postreply 15:05:21

• 羡慕S人了~~ 我以后娶老婆了也要生两个~~ :D -passers- ♂ (0 bytes) () 07/19/2011 postreply 15:07:59

• I have only one, and the other belongs to my friend....:) -铁股007- ♂ (0 bytes) () 07/19/2011 postreply 15:09:25

• 一个可能会寂寞呢, 不过有朋友玩就好 :D -passers- ♂ (0 bytes) () 07/19/2011 postreply 15:15:03

• Yes, right! -铁股007- ♂ (0 bytes) () 07/19/2011 postreply 15:19:25

• 回复：羡慕S人了~~ 我以后娶2老婆了也要生4个more~~ :D -fountain829- ♂ (0 bytes) () 07/19/2011 postreply 15:14:00

• 老婆一个就够了, 唯能极于情, 故能极于剑 -passers- ♂ (0 bytes) () 07/19/2011 postreply 15:16:54

• 老婆两个可能比较有FUN。。。 -crosfan- ♂ (32 bytes) () 07/19/2011 postreply 15:27:55

• The difference is similar to "multiplication" -铁股007- ♂ (27 bytes) () 07/19/2011 postreply 15:04:37