How many dentist are there in the US?
Data Interview Questions
132,690 data 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
Most of the questions were regarding my work experience so far. And a few logic questions like what is the angle between the hours hand and minutes hand when the time is 3:15; How do I identify which switch corresponds to which light bulb when the switches are in one room and the bulbs are in another and given that I can enter the room with bulbs only once.
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
SQL question: 1 table with player_id, log in date, and 2 other fields and was asked to calculate first day retention rate. First day retention rate is defined as the player who log in the 2nd straight day, after the first ever time they log into game.
How long you plan to work
Suppose there is a point A on road. From this point, probability of any car to pass in 20 min. is p; then tell what is probability for any car to pass in 2 min.?
What is your Clerical speed?
Most difficult experience in a work environment
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