Three friends in Seattle told you it's rainy. Each has a probability of 1/3 of lying. What's the probability of Seattle is rainy.
Data Scientist Interview Questions
33,418 data scientist interview questions shared by candidates
Alice and Bob take turns in rolling a fair dice. Whoever gets "6" first wins the game. Alice starts the game. What are the chances that Alice wins.
You are compiling a report for user content uploaded every month and notice a spike in uploads in October. In particular, a spike in picture uploads. What might you think is the cause of this, and how would you test it?
Last round is still left
What is your favorite formula?
find out k most frequent numbers from incoming stream of numbers one the fly.
Mostly case based questions intended to see my ability to reason through the problems the team was facing at the time of my interview. Also some more technical coding questions.
It's a phone interview about technical question. About how to generate all possible friendship given four tables with the "request", "accept","reject", and "remove" information.
What would be your approach to check if the overall acceptance rate has decreased from 60% in may'17 to 30% in sep'17
Q1. SQL Given tables: employees(id, unixname,team,role,days_since_started) projects(id,name,....) commits(id,file_path,proj_id,auth_id,timestamp) Find the number of unique employees per project per month? Q2. Imagine you have a CSV file: john_doe,android,ios,infra bob_law,is,backend jane_doe,frontend ------------------------------ Containing,for each employee, a list of projects he/she works on Write a script/function/else that reads data from CSV file and creates a data structure that stores, for each project, a list of employees who work on it.
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