What would I estimate as metrics for ab test ?
Datenwissenschaftler Manager Interview Questions
36,086 datenwissenschaftler manager interview questions shared by candidates
Say you notice a surge in average activity among users but the number of users is down, how would you explain this?
If you implement a new feature to FB how would you measure the success
How do you measure newsfeed health?
Two tables: User actions: date|sessio_id|userid|event session details: date|Sessionid|timespent_Sec|userid 1. Identify avg time spent per user per day 2. Create a histogram of duration on x axis, no of users on y axis which is populated by volume in each bucket Product questions: 1. Wants to add a new banner on FB Market place which suggests to sell something on facebook , should they do it, what should be done to evaluate it ? 2. Market place transactions happen through messages - these messages went down by 10% in a month, should they be worried ? How would you go about analyzing it?
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.
Given a string like 'abc', print out all the strings of combination of the same length as the original string. Like 'abc', 'acb', 'bca', 'bac', 'cab', 'cba'
In data scientist job, you can separate into three parts: Data Cleaning, Data Analysis, and Visualization. Which part would you prefer to do?
They focus a lot on their leadership principles and your resume
How to build a summary table out of a written-in-a-notepad-document table of cricket wins and losses by country. How to check the validity of an IP address string given some list of constraints.
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