What is a martingale? Correlation matrix
Data Researcher Interview Questions
14,869 data researcher interview questions shared by candidates
Given a 2d grid map of '1's (land) and '0's (water), count the number of islands. An island is surrounded by water and is formed by connecting adjacent lands horizontally or vertically. You may assume all four edges of the grid are all surrounded by water.
Why do you decide to apply for this position?
Q: What methodologies have you used? Q: What type of team do you want to work with? Q: How do you communicate results to technical/non-technical stakeholders?
How does Occam's Razor apply to UX research?
Algorithm: given an array of numbers: 1,5,3,2,4,2,3,1,2,3,2,4. Return another array with duplicate numbers in consecutive positions and in order of their first appearance, in the example the result should be: 1,1,5,3,3,3,2,2,2,2,4,4
given an array, find out three numbers such that their product is maximum.
I was surprised at the level of detail we got into for the first interview. Everything I said the interview drilled down to the bottom.
Design a study for an in-vehicle phone keypad
What kind of projects have you worked on before?
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