a***a
发帖数: 40617 | 1 再不动toss没救了
这样改，一个是防止利用机动性abuse（降低速度升级？我没理解错吧）
一个是多让toss用timing 一波 单voidray+哨兵，stalker，zealot 50人口冲人类？
不过这招碰到无脑暴兵的T，稳死 |
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c****s
发帖数: 190 | 2 这么出兵说明他前期累积了大量的气，否则不可能又是CRAWLER又是CORRUPTOR又是
BROODLORD。还是要爆追猎坚决地面万金油啊！达到后期ZERG的选择的确比TOSS多太多
了，而且而已不停变化。我用TOSS打ZERG一般都是暴兵一波推的。打到后期实在是无解
啊~大象，狂狗，BROODLOARD，腐虫各种玩死你~ |
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a***a
发帖数: 40617 | 3 不能让toss有科技啊
这是显然的道理
电兵科技的打生化组合
对方没ghost的情况下
可以平A资源多一倍的兵力
现在toss死都死在科技还没成型的路上 |
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a***a
发帖数: 40617 | 4 对操作有自信的可以3BB，3~4机枪，2~3掠夺带5个scv陆地近点直接进去
scv一边修bunker一边等后续
timing好的话这个时候哪怕是最快速度的warp，还有30秒才能好
而一般这时候toss可能就俩单位能还手
这招完克4BG
怕的是对方哨兵把你封住不让你上来，然后拖到warp升级完成
因为第一个bunker一定要直接拍toss老家旁边 |
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a***a
发帖数: 40617 | 5 不知道对T如何
对P，一般来说，是7~8min的时候zerg的经济才会完全超过toss的（toss 30农民）
这就是为啥4BG如此流行，因为4BG的timing是6min |
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a***a
发帖数: 40617 | 6 打得很凶狠的话，直接蟑螂推，或者传统的小狗加毒孢，这些都是破传统的tech的
方法
如果要稳健的话，就开矿运营，用防空防配合queen防凤凰骚扰，但是这个
怕toss的timing推，总之先要ws住，该spine crawler就果断放
千万别造一堆corruptor
等到双矿优势发挥出来（需要至少8min，从游戏开始算）
再暴兵控制地图，再扩张，尽量压制toss在2矿 |
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Y**i
发帖数: 6922 | 7 在office没活干,超级无聊.看到大家开始讨论婚纱的事,想想来写个我的婚礼准备过程吧,给需要的JM们做个参考.
故事就从订完婚开始吧.
第一件大事情,就是找婚礼地点.我们是在yelp上找的,然后挑选了几个候选的地方一个个去看的.看每个地点周围的环境,毕竟婚礼当天摄影很多,所以周围的环境很重要,大家都希望拍出PP的照片的,婚礼地点的景观作为背景是很重要的.然后问每家的报价.美国这边摆酒席一般都是按人头算的,我们看的主要是country club和hotel,至少这两类地方是这么算的.然后还要问啥时候有空能给我们.美国办婚礼一般都是在周六的,所以时间有点点挑.这件事情一定要第一个做,把时间地点定了你才能着手做其他的工作.
第二件大事就是选自己的婚纱,婚纱的lead time比较久,所以要给足时间.同时,选定伴娘和伴娘的服装.西式婚礼中是需要选定自己婚礼的颜色的,然后伴娘服装的颜色就是婚礼的颜色.伴娘服装也花时间,所以也越早订越好.通常来讲伴娘服装是需要伴娘自己购买或租赁的,新娘指定款式和颜色.但也不是一定的,我有2个伴娘,平时她们也对我挺好,加上我又有工作,所以我就给她们买了.新娘主动给... 阅读全帖 |
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f*******e
发帖数: 785 | 8 强贴留名。
看妹妹摄影师都预算几千，所以我斗胆提个小小建议，safeway的蛋糕怎么能要？基本
就是塑料口
味。。。。。
你们当地有好的bakery吗？最好是French bakery...甚至一些家中业余的蛋糕高手都可
以啊。
如果找不到好的，宁愿不要蛋糕。。。
程吧,给需要
的JM们做个参考.
个个去看的.
看每个地点周围的环境,毕竟婚礼当天摄影很多,所以周围的环境很重要,大家都希望拍
出PP的照片
的,婚礼地点的景观作为背景是很重要的.然后问每家的报价.美国这边摆酒席一般都是
按人头算的,我
们看的主要是country club和hotel,至少这两类地方是这么算的.然后还要问啥时候有
空能给我
们.美国办婚礼一般都是在周六的,所以时间有点点挑.这件事情一定要第一个做,把时间
地点定了你才
能着手做其他的工作.
伴娘和伴娘
的服装.西式婚礼中是需要选定自己婚礼的颜色的,然后伴娘服装的颜色就是婚礼的颜色
.伴娘服装也
花时间,所以也越早订越好.通常来讲伴娘服装是需要伴娘自己购买或租赁的,新娘指定
款式和颜色.但
也不是一定的,我有2个伴娘,平时她们也对我挺好,加上我又有工作,所以... 阅读全帖 |
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i****y
发帖数: 5184 | 9 恭喜恭喜。
我也曾经把mm这个list上的事情都做过一遍，不过我觉得准备婚礼这个事情不需要提前
很早，地方可以早点定。
另外，mm你搞得那么认真的肯定是不想有任何遗憾，所以千万别去safeway买蛋糕，人
不是专门给wedding做的，人也不管delivery。
程吧,给需要的JM们做个参考.
个个去看的.看每个地点周围的环境,毕竟婚礼当天摄影很多,所以周围的环境很重要,大
家都希望拍出PP的照片的,婚礼地点的景观作为背景是很重要的.然后问每家的报价.美
国这边摆酒席一般都是按人头算的,我们看的主要是country club和hotel,至少这两类
地方是这么算的.然后还要问啥时候有空能给我们.美国办婚礼一般都是在周六的,所以
时间有点点挑.这件事情一定要第一个做,把时间地点定了你才能着手做其他的工作.
伴娘和伴娘的服装.西式婚礼中是需要选定自己婚礼的颜色的,然后伴娘服装的颜色就是
婚礼的颜色.伴娘服装也花时间,所以也越早订越好.通常来讲伴娘服装是需要伴娘自己
购买或租赁的,新娘指定款式和颜色.但也不是一定的,我有2个伴娘,平时她们也对我挺
好,加上我又有工作,所以我就给她们买了.新... 阅读全帖 |
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h****i
发帖数: 302 | 10 先mark 恭喜了
程吧,给需要的JM们做个参考.
个个去看的.看每个地点周围的环境,毕竟婚礼当天摄影很多,所以周围的环境很重要,大
家都希望拍出PP的照片的,婚礼地点的景观作为背景是很重要的.然后问每家的报价.美
国这边摆酒席一般都是按人头算的,我们看的主要是country club和hotel,至少这两类
地方是这么算的.然后还要问啥时候有空能给我们.美国办婚礼一般都是在周六的,所以
时间有点点挑.这件事情一定要第一个做,把时间地点定了你才能着手做其他的工作.
伴娘和伴娘的服装.西式婚礼中是需要选定自己婚礼的颜色的,然后伴娘服装的颜色就是
婚礼的颜色.伴娘服装也花时间,所以也越早订越好.通常来讲伴娘服装是需要伴娘自己
购买或租赁的,新娘指定款式和颜色.但也不是一定的,我有2个伴娘,平时她们也对我挺
好,加上我又有工作,所以我就给她们买了.新娘主动给伴娘买服装是一件非常的nice的
事情.这个服装是gift.
家不光光拍婚礼,还会拍其他的活动,所以你越早下手,挑的空间就越大.我们的budget是
$3000,8个小时的服务.也是通过yelp看local有哪些rating高的摄影师,... 阅读全帖 |
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a*o
发帖数: 25262 | 11 http://www.newyorker.com/magazine/2014/10/13/cooka%C2%80%C2%99s
The Kitchen Network
America’s underground Chinese restaurant workers.
By Lauren Hilgers
Chinatown employment agencies can get immigrants kitchen jobs in a few
hours. Credit Photograph by Annie Ling
In a strip mall on a rural stretch of Maryland’s Indian Head Highway, a
gaudy red façade shaped like a pagoda distinguishes a Chinese
restaurant from a line of bland storefronts: a nail salon, a liquor store,
and a laundromat. On ... 阅读全帖 |
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l*****l
发帖数: 4170 | 12 徐志摩 《偶然 Coincident》
我是天空里的一片云 I am in the sky as a lone piece of cloud,
偶尔投影在你的波心 incidentally reflected on your wavy heart.
你不必讶异 Don't be surprised,
更无须欢喜 nor should be cheered,
在转瞬间消灭了踪影 cuz it in no time vanished.
你我相逢在黑夜的海上 You and me first met in a dark night on the sea.
你有你的 You headed your way,
我有我的方向 I had my way.
你记得也好 May you remember,
最好你忘掉 or better should you forget altogether,
在这交会时互放的光芒。those sparkles we both emitted at the moment of
encounter.
徐志摩 《你去 Your Departure》
你去，我也走，我们在此... 阅读全帖 |
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l*******g
发帖数: 4894 | 13 when the tension of string changes, you should adjust the toss rod. why not
leave it there for several days and then try to adjust the toss rod...
松, |
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b*****e
发帖数: 14299 | 14
居然有争议说这部自传是虚构的，一大段讨论，自己看吧。
Guy Sajer's book THE FORGOTTEN SOLDIER is rather notorious in the historical
community; the book purports to be the memoirs of an Alsatian who served
with the Division for the last years of the Second World War. Much has been
written on the subject of whether or not the book is a true story or not.
Two articles are presented here, plus an exchange of letters to the editor
to an American military journal. Those curious may wish to obtain a copy of
their own, and to inv... 阅读全帖 |
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S*********g
发帖数: 24893 | 15 但合起来就致命了。
比如说，你有两个硬币，跟人打赌10块钱，你赌两个heads，toss起来，果然2个heads。
你赢了。
这时候输家跳出来质疑，硬币做过手脚，旁观者都会一笑了之，觉得是输家无赖。
然后，你连续toss了20次，20次都是2个heads。
现在傻子也看出来你是玩假的了吧。
方为了质疑韩寒撒谎，手里有不下20个疑点了吧？
如果这些疑点的发生概率相对independent，韩粉们，你们自己估摸一下，韩寒和方的辩论，谁更站得住脚。
可惜，对很多读者来说，外形和人格是可以划等号的。
酷=高尚
帅=正直
富=诚实 |
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S*********g
发帖数: 24893 | 16 【 以下文字转载自 Military 讨论区 】
发信人: gc01 (gc01), 信区: Military
标 题: 王丹涉嫌“兒童色情”FBI有案底zt曹長青
发信站: BBS 未名空间站 (Thu Jan 22 21:41:52 2015, 美东)
王丹涉嫌“兒童色情”FBI有案底
曹長青
對王丹是否是同性戀的問題，他自己當然有權保持沉默。但作為公眾人物，對媒體報道
他出入同性戀場所等，他不僅矢口否認，甚至揚言要起訴報道他是同性戀的媒體，這就
等于說，王丹否認自己是同性戀。王丹表示，那家媒體負責人最后向他“道歉”。但他
自己對媒體、對大眾撒了那麼多謊，卻絕無一句道歉。而且，一個本應是為同性戀權益
呼吁的人，這麼個否定法，不知同性戀團體怎麼看。
但不管怎麼說，他是不是同性戀，不是問題，但如果涉嫌戀童，那可就一定是問題了。
我在《五錯俱全的王丹》一文裡曾提到，王丹在哈佛讀書期間，他的美國鄰居就有反映
，王丹和太多男孩子交往，如果不當接觸未成年男孩的話，是會犯罪的，需要長輩管教
。在台灣清華大學，也有老師意識到他周圍總有一些年輕男孩。學校老師們還以為，王
丹是因為安全原因，需要有一... 阅读全帖 |
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w*********p
发帖数: 3305 | 17
菊花舔多了的嘴唇
toss that salad like it's never been tossed before LOL |
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s***t
发帖数: 197 | 18 take it easy: relax.
"I don't have any special vacation plans. I'm just going to take it
easy."
toss something: throw something away; put something in the trash.
"These shoes are worn out. I guess I'll have to toss them."
tough: difficult.
"Question number three is a tough one.Do you know the answer?"
There, there.: expression of comfort.
"There, there. Everything's going to be OK."
tight-fisted: very frugal; unwilling to spend money unnecessarily.
A: Do you think Charlie wil |
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O******e
发帖数: 734 | 19 You are probably talking about "bean toss" or "bean bag toss",
a children's game. |
|
O******e
发帖数: 734 | 20 英漢辭典最好的我認為是梁實秋大師主編的，
臺灣遠東出版社發行的那一系列的辭典。
梁的辭典裏解釋：
cast
v.t. (1) 投，擲，拋。(2) 投向，投射。(3) 鑄造，鑄成。
(4) 分配角色，派定扮演人員。(5) 捨棄，脫落，蛻。
v.i. (1) 投，擲。(2) 鑄造。(3) 計算。(4) 思考，計劃，圖謀。
(5) 推測，搜尋。(6) 扭轉，轉向。
n. (1) 投，擲，拋。(2) 鑄成物，型成物。(3) 演員的陣容。
(4) 形狀，表情，容色。(5) 種類。(6) 淡色，淡淡的顏色。
(7) 斜視，斜看。
adj. 鑄造的，鑄成的。
注意：動詞第一義參看 throw 。
（並且收錄了三十多個例句，在此略。）
梁的辭典的好處是常把意義相近的詞集中在一起做個比較。
上頭 cast 的解釋裏提示了要參看 throw 。
throw 字底下解釋道：
throw, toss, cast 均指突然拋出。throw 是最通用的字。
toss 是指手掌向上作隨意的或輕輕的拋出。
cast 做拋擲解時，除在投票，釣魚，航行等方面的特殊用法外，
是文學用語和古語，但主要用於比喻的義思。
說到 ... 阅读全帖 |
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H********g
发帖数: 43926 | 21 北京规范中餐译名 童子鸡不再是"没性生活的鸡"
2012年03月14日 07:47 来源：长江日报 参与互动(16)
13
记者刘功虎
昨日有媒体报道北京市外办联合“市民讲外语办公室”联合出版了《美食译苑——
中文菜单英文译法》一书，为全国2158道中餐饭菜英译名定出规范。
据了解，新出版的《美食译苑》涵盖了八大菜系的主流菜品，从家常菜到各式大餐
菜品都被收入并翻译成外国人能看懂的英文名称。这次取消了之前不少已有“洋名”的
部分菜品的翻译，而代之以新译法，或者采用简单的音译，或者根据食材、烹饪方法进
行意译。
比如“四喜丸子”，有的餐馆菜单早已将其译为“four glad meat balls(四个高
兴的肉团)”，北京市有关方面认为此译很生硬，虽然“颇有喜感”，但是严重不准确
，因此主张译作“Braised pork balls in gravy”，意思是“肉汤中炖的猪肉丸”。
北京有关方面专家举例说，“童子鸡”此前被翻译成Chicken without sex(还没有
性生活的鸡)，不仅不雅，而且语义不确。在民间，童子鸡又被称为“春鸡”，结合英
语中用春、夏、秋、冬来形容小动物年龄... 阅读全帖 |
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|
M*P
发帖数: 6456 | 23 这个报道说是希拉里赢了很多toss，但是并没有说有哪些地方是Sanders赢了toss。
故意的吧？ |
|
p*********l
发帖数: 26270 | 24 我舞伴能跳很花的，比这个花，嘿嘿，他说我们现在跳的运动量是nothing，他以前能
把女伴toss来toss去的，那才叫运动
我们跳salsa, swing, tango, cha cha, samba，waltz，fox trot。。。乱七八糟的，
什么都有点。。。希望有一天能跳得跟他一样好！
就成 |
|
S***d
发帖数: 1802 | 25 【 以下文字转载自 Family 讨论区 】
发信人: Shred (loved wrong woman), 信区: Family
标 题: Grenade
发信站: BBS 未名空间站 (Mon Mar 14 01:11:48 2011, 美东)
Easy come, easy go
That's just how you live, oh
Take, take, take it all,
But you never give
Should of known you was trouble from the first kiss,
Why were they open?
Gave you all I had
And you tossed it in the trash
You tossed it in the trash, you did
To give me all your love is all I ever asked,
Cause what you don't understand is
I’d catch a grenade for ya
Throw my hand o... 阅读全帖 |
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B****t
发帖数: 1982 | 26 比赛项目
Games - Schedule
Time Ring 1 Ring 2 Ring 3
10:30 AM Limbo (>50 lbs) Howling Contest Limbo (<50 lbs)
11:30 AM High Jump (>50 lbs) Best Beggar Look-a-Like
12:30 PM Flyball Demo Flyball Demo Flyball Demo
1:30 PM Musical Sit (small) Rollover Rover High Jump (<50 lbs)
2:30 PM Musical Sit (med) Longest Tail Best Trick (>50 lbs)
3:30 PM Musical Sit (large) Frisbee Toss (style) Best Trick (<50
lbs)
Best Beggar – Everyone knows that s... 阅读全帖 |
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a********t
发帖数: 4255 | 27 Games - Schedule
Time Ring 1 Ring 2 Ring 3
10:30 AM Limbo (>50 lbs) Howling Contest Limbo (<50 lbs)
11:30 AM High Jump (>50 lbs) Best Beggar Look-a-Like
12:30 PM Flyball Demo Flyball Demo Flyball Demo
1:30 PM Musical Sit (small) Rollover Rover High Jump (<50 lbs)
2:30 PM Musical Sit (med) Longest Tail Best Trick (>50 lbs)
3:30 PM Musical Sit (large) Frisbee Toss (style) Best Trick (<50
lbs)
Best Beggar – Ever... 阅读全帖 |
|
c****t
发帖数: 19049 | 28 THE PACIFIC JOURNAL OF ADAM EWING
Thursday, 7th November—
Beyond the Indian hamlet, upon a forlorn strand, I happened on a trail of
recent footprints.
Through rotting kelp, sea cocoa-nuts & bamboo, the tracks led me to their
maker, a White man,
his trow-zers & Pea-jacket rolled up, sporting a kempt beard & an outsized
Beaver, shoveling
& sifting the cindery sand with a teaspoon so intently that he noticed me
only after I had hailed
him from ten yards away. Thus it was, I made the acquaintance of... 阅读全帖 |
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D*****r
发帖数: 6791 | 29 http://www.youtube.com/watch?v=0rvLeCMTofE
Your cheatin' heart,
Will make you weep,
You'll cry and cry,
And try to sleep,
But sleep won't come,
The whole night through,
Your cheatin heart, will tell on you...
When tears come down,
Like falling rain,
You'll toss around,
And call my name,
You'll walk the floor,
The way I do,
Your cheatin' heart, will tell on you...
Your cheatin' heart,
Will pine some day,
And crave the love,
You threw away,
The time will come,
When you'll be blue,
Your cheatin' he... 阅读全帖 |
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D*****r
发帖数: 6791 | 30 http://www.gutenberg.org/files/37726/37726-h/37726-h.htm
IN GOD'S WAY
SCHOOL-DAYS
I.
In the melting snow on the hill-side by the sea, in the last rays of the
evening sun, stood a boy of fourteen, awestruck. He looked toward the west,
out across the sea; he looked toward the east, over town and shore and the
broad hills; in the background still higher peaks rose far away in the clear
sky.
The storm had lasted a long time; it had been more terrible, too, than any
the old people could remember. In ... 阅读全帖 |
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a*****s
发帖数: 6260 | 31 ☆─────────────────────────────────────☆
scidem (scidem) 于 (Thu May 19 22:55:47 2011, 美东) 提到:
华中科技大学学生扔鞋挑战GFW之父方滨兴。昨天在武大发生的，今天上了《纽约时报
》！！！
我为华科骄傲啊！！！看到《纽约时报》上出现Huazhong University of Science and
Technology的时候，好激动！！！
这里是扔鞋者在twitter上的照片。
里面有一段我翻译一下是这样的
在(扔鞋者扔鞋)之后的几个小时里，赞美之声如风暴般席卷中国互联网，很多这样的帖子却
被及时删除了。
那些向扔鞋者（twitter账号是@hanunyi）—— 华中科技大学学生—— 致敬的帖子里，很
多人视他为英雄，并主动提出要给他各种奖励，从iPad,名牌鞋子甚至倾慕他的女性希望“献身”，这
种肉偿被中国的互联网监管者认为是有损社会道德。（本人注：这里是对中国互联网
监管者“管得太宽”的一个讽刺和嘲笑）
Postings hailed @hanunyi — a student at H... 阅读全帖 |
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y**********o
发帖数: 7947 | 32 Pink Grapefruit and Radicchio Salad With Dates and Pistachios
Time: 10 minutes
2 pink or red grapefruits
2 medjool dates, pitted and thinly sliced
1/2 medium shallot, peeled and thinly sliced
Fine sea salt, to taste
1 small head radicchio, halved and cored
4 tablespoons extra-virgin olive oil
2 tablespoons coarsely chopped pistachio nuts
Freshly ground black pepper.
1. Slice the top and bottom off one of the grapefruits. Stand it up on a cut
side and, using a small sharp knife, slice off the pee... 阅读全帖 |
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e*******e
发帖数: 1837 | 33 Awesome! I'm wondering who tossed the coin and if they toss it multiple
times to make sure if it's a fair coin. :-) |
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a*****g
发帖数: 19398 | 34 Like many parents of school-age children, Frances Frost tries to keep up
with the papers sent home in her daughter Natalie’s backpack. Sifting
through permission slips, picture day fliers, field-trip notices, and other
forms seems like a daily occurrence, and often somewhere lost in the pile is
a reminder to send money to her fifth-grader’s school cafeteria. As the
mother of four, refilling school lunch accounts is second nature by now, but
last week she was caught by surprise. When her youngest... 阅读全帖 |
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f********g
发帖数: 957 | 35 i do not visually see on the attached checklist or when walking through the
house what cleaning you have completed. There were a lot of personal items
left in the kitchen that were in very bad condition and we have tossed them.
For example, you left some molded food items in the kitchen cabinet, your
tea pot was melted on one side, the rice cooker with molded rice on the
interior were all tossed. The refrigerator was left uncleaned as well The
bedroom garbage can was not wiped out of food stuc... 阅读全帖 |
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B*********h
发帖数: 800 | 36 ☆─────────────────────────────────────☆
luoge (纯净水) 于 (Mon Dec 4 20:23:29 2006) 提到:
今天拿到了口头offer, 在quant版学习了不少东西，也希望贡献一点力量，所以把记得
的面试问题写出来。祝大家都找到满意的工作。
I got all the questions in interviews. I am trying to make all answers/hints
accurate but can not guarantee.
Brainteasers
1. a normal dice with 6 sides with numbers from 1 to 6, toss it at most
three time. After each toss, you get a number x, you can either continue or
get x dollars. What is the game worth?
2. the same rule as question 1, Wh |
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r*****t
发帖数: 286 | 37 ☆─────────────────────────────────────☆
graceman (老牛) 于 (Tue Jan 30 19:45:52 2007) 提到:
想了很久， 仍然没有做出来， 看到这里的高手挺多，发出来问问。
A,B两个人抛硬币（假设都是fair coin）， set X to be the number of tosses when
A get 2 consecutive heads, y to be the number of tosses when B get 3
consecutive heads, find the probability P{X>Y}.
I want the exact solution, not based on simulation.
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netghost (Up to Isomorphism) 于 (Tue Jan 30 19:57:08 2007) 提到:
题没说清楚.
when
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B*********h
发帖数: 800 | 38 ☆─────────────────────────────────────☆
litaihei (李太黑) 于 (Thu Apr 12 22:25:15 2007) 提到:
A toss N+1 times
B toss N times
P(A has more head than B) = ?
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longtian (施主，小僧已经很久不烧香了) 于 (Thu Apr 12 22:58:55 2007) 提到:
1/2?
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litaihei (李太黑) 于 (Thu Apr 12 23:00:59 2007) 提到:
how do you get it!
so quick.
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foolman (fool) 于 (Thu Apr 12 23:07:27 2007) 提到:
对称性
P(heads of A tos |
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h******l
发帖数: 59 | 39 a normal dice with 6 sides with numbers from 1 to 6, toss it at most
three time. After each toss, you get a number x, you can either continue or
get x dollars. What is the game worth?
我实在是不会。以前Angel专门发过一个附件解释这个问题，那位大侠有？我在这里没
找到答案，请再贴一次。谢谢 |
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b***k
发帖数: 2673 | 40 ☆─────────────────────────────────────☆
leephy (leephy) 于 (Fri Jul 18 10:22:46 2008) 提到:
(1) let N(t) be a Poisson process of rate p, calculate
E([N(3)-N(1) | N(2)]
(2) Toss a coin until the nth Head turns up. Let Y=number of required tosses
, calculate P(Y is even), set p=P(H),q=P(T).
☆─────────────────────────────────────☆
QL365 (QL) 于 (Fri Jul 18 14:45:43 2008) 提到:
(1) E(N(3)-N(1)|N(2)) = E(N(3)-N(2)|N(2)) + E(N(2)-N(1)|N(2))
= p + N(2)/2
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l |
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a*********t
发帖数: 261 | 41 toss a coin , get +1 for a head and get -1 for a tail, the coin is unfair,
the probability of gettting head is 75% and getting tail is 25%.
start with $5, stop at either $10 or $0. What is the possibility of stopping
at $10? What is the expectation of number of tossing?
How to solve this problem? Thx. |
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b***k
发帖数: 2673 | 42 ☆─────────────────────────────────────☆
Slayer (slayer) 于 (Sat Apr 25 00:47:20 2009) 提到:
Suppose we toss a dice repeatedly until all the six numbers appear at least
once, what is the expected number of tosses?
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Jadeson (Jadeson) 于 (Sat Apr 25 00:55:30 2009) 提到:
Markov Chain阿，万能灵药。
☆─────────────────────────────────────☆
longtian (Something huge is on the way ...) 于 (Sat Apr 25 02:45:48 2009) 提到:
google coupon collection problem
least
☆────── |
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b***k
发帖数: 2673 | 43 ☆─────────────────────────────────────☆
pangz (zz) 于 (Sat Jul 11 12:52:31 2009, 美东) 提到:
反复抛一个fair coin,你可以随时喊停，你的payoff是正面的数目除以抛的总数。
What's the fair price to play this game and what's your strategy?
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wisesummer (summer) 于 (Sat Jul 11 14:47:52 2009, 美东) 提到:
Fair price is 1/2;
Stop whenever # of heads > (# of tosses)/2, otherwise just keep tossing.
☆─────────────────────────────────────☆
pangz (zz) 于 (Sat Jul 11 15:09:00 2009, 美东) 提到:
Are your |
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p******i
发帖数: 1358 | 44 两种情况：
1.toss a UNFAIR coin say probability 0.6 head/0.4 tail, if it comes out a
head, you get $1,otherwise you lose $1, what is the prob. you have win $a
before you lose $b
2.toss a FAIR coin, if head, you get $2,other wise you lose 1, same question |
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s*******i
发帖数: 546 | 45 Consider the following process. We have two coins, one of which is fair, and
the
other of which has heads on both sides. We give these two coins to our
friend,
who chooses one of them at random (each with probability 1/2). During the
rest of the process, she uses only the coin that she chose. She now proceeds
to toss the coin many times, reporting the results. We consider this process
to consist solely of what she reports to us.
(a) Given that she reports a head on the nth toss, what is the prob |
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a**m
发帖数: 102 | 46 H(A) is the number of head person A tosses, T(A) is the number of tail
person A tosses.
The first equality is by symmetry of head and tail. The second one is just because that A has exactly one more coin than B has. |
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