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# Questions tagged [interview]

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### Draw Maximum Information from Experts to set up Utility Function

We aim to draw maximum information from CEP-logistics experts to set up a utility function for delivery chain choices for each parcel. The choices / dependent variables are specific transport chains, ...
14 views

### Stat experiment question on when to sample control/treatment

I was asked this question in a recent interview but basically the interviewer asked about when to sample control/treatment for an experiment. My apologies in advance as my memory on the question may ...
72 views

### Infer relationships between coefficients given covariance information

Quant Interview Question: Given $y$ = $a_1$$x_1, y = b_1$$x_1$+$b_2$$x_2$, $cov(x_1,y)$ != 0, $cov(x_1,x_2)$ > 0, $cov(x_2,y)$ = 0. Compare $abs(a_1)$ and $abs(b_1)$. Which one is larger and ...
918 views

### QR interview problem Guessing order of draws from iid U(0,1)

This is for QR at two well know trading firms (think jane street, HRT, Citadel, Jump ...)(not BB bank). Question prompt: Given n iid Uniform distributed r.v.s. $x_i$ ~ U(0,1). $x_1$ is drawn first, ...
1 vote
54 views

### Binary variable in regression model (interview question)

I got this question, it may be easy but for some reason for me is not: you are given a binary variable $b\in [0,1]$, that has no predictive power on $y$, but has some on $X$. How would you use it to ...