What are the assumptions for a linear regression?
Data Scientist Interview Questions
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what is standard error of the mean?
You observed two gambing machines for a period of time: one of them occasionally give rewards; the other one never give any rewards. Which one do you pick to play with?
online hackerank coding
There is a feature for showing friend requests. How do you measure its impact and how do you decide whether to keep it.
How would you conduct an experiment to test if a change in facebook app is effective and what metrics will you look at?
Draw a sample distribution of average daily views by users for Instagram.
To create a network graph from a log file in 20 mins. Guess the interviewer wanted a simple dictionary as a data structure but confused me with calling it a network graph repeatedly. If he indeed wanted it like a graph where all properties such as pre order , in order traversal could be applied. It's no way a 20 min question.
Explain what random forests is
How many Big Mac does McDonald sell each year in US?
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