h********2
发帖数: 23 | 1 【 以下文字转载自 NewJersey 讨论区 】
发信人: haotianqi2 (jacky), 信区: NewJersey
标 题: 急问有没有在jersey city买房的，或者打算买房的？土质污染？
发信站: BBS 未名空间站 (Thu Aug 18 23:19:44 2011, 美东)
据说以前是严重的垃圾处理厂（built on an old Chromium (Superfund Site)）， 开
发商建房之前要去掉表面的土地，大家觉得有多严重？
我们看好的房子地下有1000gallon gasoline.开发商修建8英寸的盖子在上面。我们打
算住3年左右。欢迎讨论 |
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B*********h
发帖数: 800 | 3 ☆─────────────────────────────────────☆
Suansuan (酸酸) 于 (Mon Dec 4 05:33:38 2006) 提到:
QUANT职位, 大家给点意见啊
谢谢
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Suansuan (酸酸) 于 (Mon Dec 4 05:45:38 2006) 提到:
有经验的大侠一定要帮一把啊.
都会问些什么方面的问题啊?
没有电话面试, 直接让去公司里谈.
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StarVenus (参商*美洲河岸治安联防) 于 (Mon Dec 4 10:04:10 2006) 提到:
what group?
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haotianqi2 (jacky) 于 (Wed Jan 10 00:26:53 2007) 提到:
The first round phone interview quest |
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B*********h
发帖数: 800 | 4 ☆─────────────────────────────────────☆
haotianqi2 (jacky) 于 (Thu Jan 25 02:54:15 2007) 提到:
a NYC ibank quant exam
Four sections: Maths(heavily probability), Puzzle(Brainteezer, some from
Heard on the St), Finance, Computing. Each section has about 8 questions,
choose any 3 sections and only 3 section will be graded. Total 1 hour, so
approximately 4 minutes per question. Very difficult to finish every problem
in chosen 3 sections.Below is for Full-Time version exam.
Seeking solutions to a |
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B*********h
发帖数: 800 | 5 ☆─────────────────────────────────────☆
haotianqi2 (jacky) 于 (Sat Dec 30 15:49:26 2006) 提到:
I spent a super Friday at Constellation’s headquarter at Baltimore with
their strategist groups people. Each of us (candidates) was put in a small
room and 14 people divided in 7 groups rotated and talked to us each for
like 40 minutes.
Try to answer below questions but there is no guarantee.
Q1
A square with four corners A,B,C,D. Suppose you start from corner A and have
equal chance to go to neighbo |
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b***k
发帖数: 2673 | 6 ☆─────────────────────────────────────☆
haotianqi2 (jacky) 于 (Sat Oct 6 01:37:28 2007) 提到:
Some questions listed below from this big-name IB quant exams given this
week. As usual there are four sections(basic maths, advanced maths and
brainteaser,mathematical finance and CS). Unlike the one given in January,
my feeling is that undergraduate maths were stressed(Series, Linear Algebra,
Geometry) this time and there are much less brainteasers and probability
questions; for CS part, more conce |
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b***k
发帖数: 2673 | 7 ☆─────────────────────────────────────☆
haotianqi2 (jacky) 于 (Fri Feb 15 22:39:15 2008) 提到:
Four sections: Maths, Problem Solving, Maths Finance, CS. About 5 minutes per question.
Q1:
A bug start from node A of Tetrahedron denoted by ABCD. It has equal
probability to move to other 3 nodes at any node. Ask what is the
probability of it has made 7 moves after returning to node A.
Q2.
Three circles of radius of 1,2,3 are in contact with each other. In the gap
between the three circles put one |
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I****k
发帖数: 35 | 8 haotianqi2的帖子里有这样一个题，我理解怎么算最小的那个，但是最大的和中间的那
个怎么算，我不明白。。。同时也不明白怎么算n段的情形。那位高手出来解释一下？
Question 8.
Given two i.i.d uniform random points x and y on the interval [0,1] , what
is the average size of the smallest of the three resulting intervals?
A:
Think of minimum as a function on triangle (0,0), (0,1) and (1,1). The
"height" is 1/3, and the "base" is 1/2. Then the volume is 1/18. There
is another triangle (0,0), (1,0) and (1,1). So the total volume is 1/9.
It is original integration.
2/18 for the sm |
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l*******g
发帖数: 13 | 9 where do I find questions posted by haotianqi2 ? |
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b***k
发帖数: 2673 | 10 ☆─────────────────────────────────────☆
Ithink (牛夫人) 于 (Tue May 20 16:20:06 2008) 提到:
In the post by haotianqi2, I found this interesting question. But I don't
understand very well of the solution, and hope some high hand can explain it
a little bit.
What's the definition of E(N-1)? The expectation of the numbers of cards to
get the N-1 card?
Question 1.
A deck of cards with numbers on: 1,2,...,N. Draw a card randomly from the
deck, keep it at hand, then draw another one; if the new one is |
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