Sr Data Scientist Interview Questions

3,513 sr data scientist interview questions shared by candidates

The case study was extensive, incorporating elements of visualization and forecasting. Its ambiguous nature, lacking clear questions, resulted in a time-consuming process. Ultimately, I received no feedback, which I consider unfair. Investing significant time and effort without receiving any response or evaluation from the other party seems unjust.
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Senior Data Scientist

Interviewed at PwC

3.6
Jan 22, 2024

The case study was extensive, incorporating elements of visualization and forecasting. Its ambiguous nature, lacking clear questions, resulted in a time-consuming process. Ultimately, I received no feedback, which I consider unfair. Investing significant time and effort without receiving any response or evaluation from the other party seems unjust.

Explain what the below pseudo-code 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
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Sr. Data Scientist

Interviewed at PriceLabs

4.5
Jul 9, 2023

Explain what the below pseudo-code 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

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