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How will you decide which version (Version 1 or Version 2) of the Surge Pricing Algorithms is working better for Uber ?
Uber,
369A building has 100 floors. Given 2 identical eggs, how can you use them to find the threshold floor? The egg will break from any particular floor above floor N, including floor N itself.
437You have 2 dices. What is the probability of getting at least one 4? Also find out the probability of getting at least one 4 if you have n dices.
486If we added one rider to the current SF market, how would that affect the existing riders and drivers?
Uber,
378How will you test that there is increased probability of a user to stay active after 6 months given that a user has more friends now?
526Post New Data Science Questions
When do you need to update the algorithm in data science?
Name the packages that are based on density based on the algorithm?
Which one you prefer R or Python for text analytics?
What is the difference between select and update query?
Explain the importance of 80/20 rule in model validation?
What is a z test, chi square test, f test and t test?
Are expected value and mean value different?
What is cluster sampling?
What is nosql? Name some examples of nosql databases. What is a key value store? What is column storage? What is a document database?
If you had to choose between the programming languages r and python, which one would you use for text analytics?
What is cart and chaid? How is bagging different from boosting?
Explain Examples of Data Science?
What are decorators in Python?
How can you reduce bias in a given data set?
How often should an algorithm be updated?
