3 Horses: A,B, and C. For every dollar you wager, you get $2,4,6$ dollars respectively. Can you device a strategy that warranties money?
Quantitative Researcher Interview Questions
4,818 quantitative researcher interview questions shared by candidates
Discrete math question, coins in a bag, basic prob/stat questions. For example, if there are 2 coins in a bag, one biased, the other fair, and you pick a coin at random and flip it 6 times and it came up heads every time, what is the probability you picked the biased coin
What would you do to mitigate event-based risk, such as political announcements affecting your positions?
toss two dice. if the sum is 7, you win a dollar. if the sum is even, you lose a dollar. otherwise, roll again. what is the expected payoff?
There are a collection of particles. You are given a string of 'L' and 'R's, where 'L' denote a left moving particle and 'R' denote a right moving particle. The moving speed is given as another parameter. Multiple particles could stay on the same position. Give the animation of the moving particles.
X, Y iid N(0,1), p(X|X+Y=1)
Let X and Y be random variables with standard deviation a and b. What are the bounds of Var(X + Y)? Pile of 100 coins, 99 fair 1 double heads. Pick random coin, flip 10 times, get 10 heads. What is the probability the coin is double headed coin? Dice sum games.
You are given an array of integers, A1, A2, ..., An, including negatives and positives, and another integer S. Now we need to find three different integers in the array, whose sum is closest to the given integer S. If there exists more than one solution, any of them is ok. Is there an algorithm to find the three integers in O(n^2) time?
Calculate var(x) given that the data points distribute uniformly on a 3D sphere.
How would you deal with a dataset that was too large to load into memory?
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