Data Interview Questions

132,740 data interview questions shared by candidates

Python -Count distinct words in a sentence -Count the number of times a word appear in a sentence using a Hash Map -Return tuples of a list, matching each item to another item -Count the number of times a substring appear in a string SQL -Return min and max age of male/female who bought a product -Count the number of stores in a state with grand total ? 25000 sq feet
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Data Engineering

Interviewed at Meta

3.6
Jun 2, 2017

Python -Count distinct words in a sentence -Count the number of times a word appear in a sentence using a Hash Map -Return tuples of a list, matching each item to another item -Count the number of times a substring appear in a string SQL -Return min and max age of male/female who bought a product -Count the number of stores in a state with grand total ? 25000 sq feet

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. The probability that none of the ants collide = [ ? / ? ] Follow-up: k ants are sitting at the k corners of an equilateral polygon. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. The probability that none of the ants collide = [ ? / ? ] Count how many trailing 0 in (100!)
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Data Scientist

Interviewed at Meta

3.6
Jun 4, 2015

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. The probability that none of the ants collide = [ ? / ? ] Follow-up: k ants are sitting at the k corners of an equilateral polygon. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. The probability that none of the ants collide = [ ? / ? ] Count how many trailing 0 in (100!)

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