Evaluate the integral from 0 to pi/6 of sec(x) dx.
Quantitative Analyst Interview Questions
10,158 quantitative analyst interview questions shared by candidates
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.
A line in front of movie theater, a free ticket is to given to the first person whose birthday is the same as someone who has already bought a ticket. You choose the position in this line, which position have the largest chance of getting the free ticket?
What is the expected number of coin tosses until the sequence THT is observed?
Given an array with integers, all integers appear once except one appears twice. How do you find that integer in the fastest way? Complexity?
Some sample questions: Q. You have a biased coin in which the probability of getting a head is 51%. Create an event out of this coin which has a probability of 25%. Q. There is a calculator in which all digits (0 to 9) and the basic arithmetic operators (+, -, *, /) are disabled. However other scientific functions are operational like exp, log, sin, cos, arc tan, etc. The calculator currently displays a 0. Convert this first to 2 and then to 3. Q. There are five points in an equilateral triangle of side length 1. Prove that there are two points with distance less than 1/2.
Let's play another game: There are 100 balls, you and I pick the balls in turn, for each round you can pick 2^k balls(k=0,1,2,...). Do you have a strategy to win?
There are N(sufficiently large) numbers that may repeat and x repeats more than N/2 times. Try to find an algorithm with time O(N) and space O(1) to find x.
50% of population does not smoke, 20% are heavy smokers and 30% are light smokers. If heavy smokers are twice as likely to die as light smokers, and light smokers are twice as likely to die as non-smokers then what is the likelihood that if someone died they were a heavy smoker?
We have two candles. The one burns in 2 hours the other burns in 1 hour (I am not sure about the numbers). At which time should we burn simultaneously these candles in order the one candle to have double the length of the other at 4pm?
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