Questions came from three categories. 1) Coding of simple data-structure realted questions. 2) SQL questions 3) Statistics/ probability theory questions (these where somewhat to verify basic intuition of these fields rather seeking written formal answers)
Write an equation to optimize the marketing spend between Facebook and Twitter campaigns.
How experienced are you with SQL?
What is the population in Nigeria, can you give me a 95% confidence interval?
Tell me about a previous project you worked on during your past work experience.
There is a pool of people who took Uber rides from two cities that were close in proximity, for example Menlo Park and Palo Alto, and any data you could think of could be collected. What data would you collect so that the city the passenger took a ride from could be determined? If some type of supervised classification algorithm was used to split the two populations, for example Support Vector Machine, what type of business decision would you make on points that appear close to the hyperplane?
How do you deal with imbalance data
You have 2 groups of people and are testing 2 drugs. How would you design and experiment to test the effectiveness of both drug?
SE of sample mean & SE of sample median Write a function to return elements from the Fibonnaci sequence & analyze its computational complexity.
Basic probability question. Find probability of two cars meeting given certain conditions
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