given a table massenger_sends, date | ts | sender_id | receiver_id| message_id | has_reaction Q1) how many unique conversation threads are there ? note that there are threads that sender_id and receiver is inverse. this should be one thread
Asesor Cientifico Interview Questions
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What is probability of getting one pair of card from 52 deck of cards? How would you improve work hours?
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?
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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