A, B and C are time series and the following rhos represent their correlation coefficients. rho(A,B)=0.7, rho(B,C)=0.8, what is rho(A,C)? Why the correlation matrix is positive semi-definite?
Quantitative Operations Associate Interview Questions
2,051 quantitative operations associate interview questions shared by candidates
You keep rolling a fair die with 6 sides. What is the average number of rolling to obtain consecutive six 6s for the first time?
I play a game where I start with a score of 100. I then flip 10 coins in a row. Every time I get a head I add 1 to my score. When I get a tails I take the reciprocal of my score. If you are running this game, and people are given their score in pounds at the end of the game, how much would you charge people to play?
hh ht ht tt, one h, probability of the other is h?
There are 1000 people in a hall. One person had his hand painted. Every minute everyone shake their hand with someone else. How much time is needed to paint all the hands? What is the best scenario? What is the worst scenario?
How do we measure your succes and the success of others?
If a car takes one lap with 20 k/h, how fast should it go the second lap to get the average of the first and second laps equal to 25 k/h?
Given a m*n matrix with values -1 or 1, try to flip the values in a given row and a given line efficiently.
Evaluate the integral from 0 to pi/6 of sec(x) dx.
if you have 3 children one is boy and one is girl and another is unknown, you choose one from them what is the probability that that one is a boy.
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