Difference between supervised and unsupervised machine learning ?
Data Scientist Trainee Interview Questions
33,930 data scientist trainee interview questions shared by candidates
You're at a casino with two dice, if you roll a 5 you win, and get paid $10. What is your expected payout? If you play until you win (however long that takes) then stop, what is your expected payout?
Due to the NDA I had to sign, I will not mention key things. I was asked questions that tested my knowledge about SQL, business sense, and probability/math.
In Mexico, if you take the mean and the median age, which one will be higher and why?
If you draw 2 cards from a shuffled 52 card deck, what is the probability that you'll have a pair?
If the number of Facebook friend requests dropped by 10%, how would you investigate the problem as a data scientist?
How many orders of Fries does McDonald's sell in a year?
You have 24 hours, how would you measure what % of FB stories are fake news? How would you refine your process if you have more time?
How will you analyze if launching stories is a good idea? What data would you look at?
Product questions heavily focused on FB products. How would you measure success of a new product? SQL assignment was to write a query which computes conversion rates for 2 products given the log of users actions with type of action for each product type.
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