Have you ever complained about your advisor? If yes, what was it?
Data Research Interview Questions
83,723 data research interview questions shared by candidates
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.
The population of desolate, remote planet is kept alive by a life support system. The population quadruples every 54 years, but the life support system capacity can only be doubled every 54 years. If the initial population is 2 people and the initial life support system has capacity for 16384 people, how many years will pass before the population reaches the capacity of the support system?
How long do you give up one idea?
Build a tree where the parent can have any number of children. Find the coefficient of a quadratic polynomial if you know the value of y when you plug in any x.
Data cleaning within a limited time
If you had two products and had to ask one question of users to determine which they preferred more, what would you ask?
Hypothetical study design question.
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