Say you notice a surge in average activity among users but the number of users is down, how would you explain this?
Data Interview Questions
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SQL Questions
phone screen for SQL: Give data model - solve various SQL questions Python: list and dict manipulation
The SQL question was quite easy. Given a table with detailed customer complaint tickets of different types, calculate the share of processed tickets within each type.
SQL analytical queries. Python basic programming.
What would I estimate as metrics for ab test ?
Write a query that returns percentage of unsold product_category.
If you implement a new feature to FB how would you measure the success
Find common words in 2 sentences
Experience, Location mobility, Specific knowledge
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