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Sr Data Scientist Interview Questions
3,383 sr data scientist interview questions shared by candidates
They asked me how I spent my time while doing the coding interview question.
Can you explain what the pseudo-code below is trying to do? array[N] # array of N integers, indexed 0 to N-1; # assume it’s populated with [1,4,2,-2,-9,10,2,12,2,-4,-4,-4,-4,2,6,7] peak = array[0] index = 0 output = [] # array of tuples For x in 1..N-1 if (array[x]*array[x-1] > 0) if peak < 0 and array[x] < peak peak = array[x] index = x if peak >= 0 and array[x] > peak peak = array[x] index = x else output.insert( (index, peak) ) peak = array[x] index = x end if end for return output
Basic probability & stats questions -- just go through the book Practical Statistics for Data Scientists & Brilliant.org and you'll be all set. But make sure to brush up on PM knowledge as well, since this seems to be what they're really looking for.
they asked me about the my general background, brief introduce about myself?
Mostly it was around experience and Projects. One Python coding question
A model I am proud of implementing
How would you evaluate an A/B test if the distribution of values is skewed?
What is A/B testing? How do you divide the groups.
They asked very basic SQL questions for data wrangling. It’s not about the questions but if you can fit their Mold of thinking.
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