How many dentist are there in the US?
Data Scientist Interview Questions
33,418 data scientist interview questions shared by candidates
Given a database of posts and a database of comments on those posts, how do you determine how many conversations are happening in the comments per post on average.
Statistical theory, case question
The three data structure questions are: 1. the difference between linked list and array; 2. the difference between stack and queue; 3. describe hash table.
Q. Tell me about a time when you were short on deadline and how did you handle it? Q. Write a Python code to return the count of words in a string Q. What is cross validation Q. Tell me about your favorite algorithm
How would you build and test a metric to compare two user's ranked lists of movie/tv show preferences?
given a table massenger_sends, date | ts | sender_id | receiver_id| message_id | has_reaction Q1) how many unique conversation threads are there ? note that there are threads that sender_id and receiver is inverse. this should be one thread
What is probability of getting one pair of card from 52 deck of cards? How would you improve work hours?
Mapreduce questions
How would you explain a confidence interval to a non-technical audience?
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