You have a table with appID, eventID, and timestamp. eventID is either 'click' or 'impression'. Calculate the click through rate. Now do it in for each app.
Scientist Interview Questions
61,019 scientist interview questions shared by candidates
Common statistical and python related questions. 1) How do you proof that males are on average taller than females by knowing just gender or height. 2) What is a monkey patch 3) How do you get the count of each letter in a sentence
Coding test: moving average Input 10, 20, 30, 10, ... Output: 10, 15, 20, 17.5, ...
Multiple choice questions include basic sql queries and some basics statistics questions.
Are you a big-picture person or a detail person?
What has the larger expected value, sampling a number between 1 and n from a uniform distribution and multiplying it by itself, or sampling two numbers and multiplying them.
A table has a column with full names(e.g. 'Tom Hardin'). write a python code to get distinct first names(i know its super easy in sql)
is technical test score necessary to crack all rounds of interview
What's your strengths for this position
If revenue is down 1% and time spent is up 2%, what do you infer/ decide?
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