Sr Data Scientist Interview Questions

3,380 sr data scientist interview questions shared by candidates

In a time interval of 15-minutes, the probability that you may see a shooting star or a bunch of them is 0.2. What is the percentage chance of you seeing at least one star shooting from the sky if you are under it for about an hour? Suppose you have a medical test for a rare disease that is 99% accurate. If the disease occurs in 1% of the population, what is the probability that someone who tests positive actually has the disease?
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Senior Data Scientist

Interviewed at Microsoft

4
May 1, 2024

In a time interval of 15-minutes, the probability that you may see a shooting star or a bunch of them is 0.2. What is the percentage chance of you seeing at least one star shooting from the sky if you are under it for about an hour? Suppose you have a medical test for a rare disease that is 99% accurate. If the disease occurs in 1% of the population, what is the probability that someone who tests positive actually has the disease?

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

3.7
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.

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