probability of the sum of N iid uniform random variables less then 1
Junior Quantitative Analyst Data Analyst Interview Questions
10,227 junior quantitative analyst data analyst interview questions shared by candidates
One of the question: Compare two strings from two arrays of n strings and print 'yes' if they are almost similar and 'no ' if they are not. for example if 1 - 'aaabbb' 2- 'aabb' 1- {a:3 b:3} 2-{a:2 b:2} then they are almost similar if for, a: 3-2=1 and for b= 3-2 =1 such difference is less than 3, so for this example, the results is 'Yes' .
data structure, statistics
Information ratio and intuition behind it.
N coffee chains are competing for market share by a fierce advertising battle. each day a percentage of customers will be convinced to switch from one chain to another. Current market share and daily probability of customer switching is given. If the advertising runs forever, what will be the final distribution of market share? Assumption: N is an integer less than 25, Total market share is 1.0, probability that a customer switches is independent of other customers and days. Example: 2 coffee chains: A and B market share of A: 0.4 market share of B: 0.6 Each day, there is a 0.2 probability that a customer switches from A to B Each day, there is a 0.1 probability that a customer switches from B to A input: market_share=[0.4,0.6], switch_prob = [[.8,.2][.1,.9]] output: [0.3333 0.6667]
In the third problem, you are given a set of tetris-style pieces, and a rectangle. your job is to fit the pieces into rectangle if possible
Estimate the value of pi using uniform random variables? Then they ask to optimize your implementation from there and compare it to some other methodologies
Portfolio Optimization. No brain teasers. Some risk management related questions in the context of the resume. Some math and OR related questions. Vol related quesions.
Please describe your previous work experience
How many tennis balls are made in China each year?
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