Statistics questions on random walks.
Quantitative Researcher Interview Questions
2,686 quantitative researcher interview questions shared by candidates
linear regression, normality of (daily vs monthly) real stock returns, sorting algorithms.
Deleveop an investment strategy starting from a multitude of data.
expected value involving dice question
A lot of statistics and probability puzzles, minimal coding.
Given three variables x, y, and z, where: x ~ n(0,1), z ~ n(0,sigma^2), and y = x + z. x is independent of z. For a given draw of y, what is the expected distribution of x? p(x|y)
Classic brainteasers and coding problems on leetcode.
assumptions of linear regression and follow-up
1. A rod is divided to n segments randomly, what is the probability that the segments can form a polygon. 2. Randomly choose three points on a circle, what is the probability that they form an acute triangle ? 3. Cannot remember the detailed description, the main issue is to figure out the relation between the cdf/pdf and f(u)=E(max{u-x,0}), with x being the random variable. 4. 2n random numbers are laid in a row. We take turns to take a number. Each time, one can choose from the number on the tail or the head. The one with the bigger summation wins the game. If I go first, can I always win (or tie)?
The probability of two people meet each other in the same time range
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