SIG PHONE INTERVIEW
can anyone shed light on what i can expect ... have a phone interview coming up with SIG. brainteasers, behavioral, resume, (ive also heard they focus on game theory, but will this come up on the phone? also, do they just want to see if i understand game theory or if i can use it to solve problems ... again, for the phone interview only please i underdstamd they may demand a more deeper understanding later on in the process). thanks ! also, any specific quesitons would be great !
also, i hear they talk a lot about poker, which is good for me .. .do they ask how game theory applies to poker or anything like this ?
its pretty simple. know brainteasers, and know your behavorial.
if you play poker, then know poker. (if you don't then its ok) btw, i mean know poker.
5 friends walked into a restaurant. They all had a different birthday. There was a round table with 5 seats around it. What is the probability that they sit down in correct age order either clockwise or counter clockwise?
From Fall '08.
I had the exact same question when I interviewed in Fall '09.
There are 5 ways they can be seated in the correct order clockwise and 5 counterclockwise. So total of ten positions. The number of ways they can be seated at any position is 5! . So counting.
5+5/(5!) = 10/(54321) =10/120 = 1/12
I think. I'm pretty sure.
LOL i had this too
i had like 30 seconds of behavioral and the rest were agonizing brainteasers
Surprised you guys remember your interview questions. Perhaps my memory is awful.
When was the last time you got laid?
I'd trade ever getting laid again for a chance to work at SIG.
1/12 sounds right... (5/5)(2/4)(1/3)(1/2)(1/1) = 1/12
1st round is basically standard fit stuff then probability brainteasers (50/50)
as far as game theory is concerned, it's not as much about knowing formulas as it is about just being able to think logically
Technically they can't be in order since it's a round table and the first and last guy will end up sitting next to each other.
That's really smart in a no shit sherlock kind of way.
you're an idiot
Excuse me?
Second Round Phone interview with SIG (Originally Posted: 02/11/2014)
Research Analyst role. What types of questions should i expect during a second round interview? I havn't interviewed much for research roles and I don't really know what to expect.
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What office are you looking for? They have a few; I believe most ER is in NYC and Philly
Looks like I have a second rounder coming up too. How did it go?
What industry positions are open that people are interviewing for??
Did you go through a modeling test? Can you elaborate?
SIG INTERVIEW QUSTIONS 1st ROUND (Originally Posted: 03/12/2012)
space reserved.
You have 8 marbles, 7 of which are the same weight 1 isn't. How do you figure out the lightest marble if you can only weight them twice using scale with two balances.
bump
You flip four fair coins, if you get 4 heads I will give you $10.00
You pay me $1.00 to play.
Should you play? What is the EV:= % to win * pay out
I want to have a discussion about the followup from this question, as I believe each play would be independent, but was told no it was conditional...
added italics
my concern with the conditional basing it off of the last game would be suppose I don't see the first game I then walk in the room during the second game why would the first game change the odds of the the second game
.5^4
just curious... how could you score 1 sb by just typing "space reserved"...
Are you sure it isn't 9 and 8 instead of 8 and 7?
Anyway the logic is the same. You make 2 groups of 3 and weight them. If they weight the same, the marble you're looking for is in the other 2 marbles left, weight them and you got your answer. If one of the groups weights less, you pick those 3 and weight 1 and 1. If one weights less that's the one, if they weight the same it's the one you left out from the three.
Yes. Now answer number two so we can discuss Gambler's Fallacy!
on the surface it looks like a 0.5 ^ 4 = 1/16th so your EV is negative. Don't play.
the actual ev, is you win 10 every 16 plays and lose 1 for each of those 16. so -6/16, -$0.375
You take 6 marbles and weigh 3 against each other. Two cases:
Case 1: The 6 are all of the same weight. For the second measurement, you weigh the remaining two against each other and the one that weighs less is the lightest one.
Case 2: The 6 contains the one marble that's a different weight, so the scale won't be even. Take any two marbles from the lighter balance and weigh them against each other. If they weigh the same, then the third marble is the lightest; otherwise, the lighter of the two marbles is the lightest marble.
Edit: didn't notice maximus's response above!
For the second question, the only way I can see it being conditional is if you're allowed to restart the game once a tails is flipped. So for example, if your first four flips are HTHH, then you would only need two more heads to win $10. Not sure if this is correct though.
Yea I think that is the question. The other way is way too easy: -1 + 10/16 = negative EV. I think more clarification is needed, but as I understand you pay $1 to flip four times, and then if you wish you can pay $1 more to flip 4 more times and the second four are appended to the end of the first four. So if you flip HTHH first you can pay $1 and flip HHTH and you would win $10 since that makes HTHHHHTH.
That makes it a little bit harder.
You need to explain the question further like the guys said above. If you can make decisions as to how many times you flip the coin or smth it's related to game theory, so it would be conditional. There was a thread recently about game theory with a heads/tails example actually.
for example lets say i win 10 usd 100 games in a row
the chance for me to win the 101 time is still only ~6% right?
Yeah I don't see how that's conditional. It would still be 6.25%. Changing what you think about it because you think tails is "due" would be the gambler's fallacy, like you mentioned in the beginning
SIG first round phone interview (Originally Posted: 04/15/2011)
Does anybody know what is the first round interview like at SIG? I have a phone interview coming up next week with SIG with HR. The position is about equity research to support senior analyst.
hey mr. machina...i have a phone interview for a research position coming up and was wondering what sorts of questions you got so I can get a feel of what to expect. would GREATLY appreciate the help : )
Can anybody give me some suggestions please??? Thanks!!!!
What was the interview like with SIG? Thanks.
use search
Did any of you ever make it past the first round? If for the research position, what is the interview like after probability? Market knowledge?Anything specific. Thanks!
Interview with SIG from Non-Target? (Originally Posted: 03/03/2014)
I was wondering what the chances of getting at least a first round interview w/ a top prop trading firm like SIG would be without attending a target school. I applied for a research analyst position with the company and I assume that landing the position without TOP credentials would be essentially impossible unless you kill the interview and perform exceptionally well with the probability/mental math portion of the interview. But is the process of even getting an interview with the company just as selective?
Thanks for any feedback.
Yes. I got the interview from applying online and I went to a non-target school. But I assume they already finished with recruiting now
Care to elaborate? Do they only recruit at one particular point in each year?
I did, I was pretty shocked. I made it to the second round.
Pure brainteasers all the way up the final round - good luck!
What is SIG's first round phone interview like? (Originally Posted: 04/15/2011)
I have a phone interview coming up with SIG next week. I would like to know what are the questions like for an equity research position? And the first round is with HR people.
Can anybody give me some suggestions please??
easy probability questions like whats the odds of getting a pair of kings in 2 cards
Thanks! jsmort11. I read through the threads about SIG. It seems like the interview is the same for both ER and trader.
yeah--i would imagine they would be relatively similar. A lot of these prop firms really want HIGHLY quantitative people throughout, regardless of what your title is. If you want some more insight, do a search on the Jane Street Capital interview process...i would imagine they would be similar and there are MANY threads about JSC floating around here as well.
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