In a data scientist interview, expect employers to ask questions that assess your data modeling, problem-solving, and programming skills. Be prepared to answer general questions that test your knowledge of statistics and data science. You should also be ready to answer open-ended questions that test your creativity, communication skills, and formal education in data modeling and programming.
Given an event-level table of interactions between pairs of users (note that there aren't duplicates in one day for one pair of users), for each possible number of "people interacted with" find the count for that group in a given day (i.e. 10 people interacted with only one person, 20 with 2, etc.).
What is the expectation of the variance?
How can Facebook figure out when users falsify their attended schools?
Measure difference between two vectors
What machine learning model would you use to classify fraudulent transactions on credit cards?
Tell a time when you had to persuade a time.
If you can build a perfect (100% accuracy) classification model to predict some customer behavior, what will be the problem in application?
When you have a time series data by monthly, it has large data records, how will you find out significant difference between this month and previous month
Ho 5 zucche, pesate a coppie, e le pesate sono 21kg, 22kg, etc. . Come posso trovare il peso totale delle zucche?
Some Algorithmic questions followed by stats question. No SQL
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