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Data Scientist Senior Interview Questions
54,325 data scientist senior interview questions shared by candidates
Give a list of strings, find the mapping from 1-26 for each string that maximize the value for each string. No distingulish between capital letter and lower case, other characters do not count.
You have three fair coins. You repetitively flip all coins together. After each round you remove the coins that show tails. What is the expected number of rounds until you have no coins left to flip?
In the Phone interview, they went through my resumes. In the on-site interview, I was asked to give a 15 min proposal presentation based on the topic they applied.
Desgin a search system for a document search.
What are the assumptions for a linear regression?
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?
Explain what random forests is
How many Big Mac does McDonald sell each year in US?
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