Data Scientist Junior Interview Questions

1,122 data scientist junior interview questions shared by candidates

Background, motivazione e aspettative, competenze tecniche. Durante il test pratico: -alcuni semplici problemi di programmazione (ordinare stringhe o array) da svolgere su file word nel linguaggio di programmazione preferito; -problemi di trattamento dati strutturati con SQL, da svolgere su file word
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Jr. Data Scientist

Interviewed at SADAS (Italy)

4.5
Feb 19, 2021

Background, motivazione e aspettative, competenze tecniche. Durante il test pratico: -alcuni semplici problemi di programmazione (ordinare stringhe o array) da svolgere su file word nel linguaggio di programmazione preferito; -problemi di trattamento dati strutturati con SQL, da svolgere su file word

1. Can you give a brief description of Exploratory Data Analysis and feature engineering? 2. We are trying to predict customer cancellations. Is this problem a classification problem or regression problem? 3. What is regularisation? How is it done? 4. In a regression output – each of the coefficients have estimates and p-values – can you briefly explain what those mean and how you might use that information? 5. What are precision and recall? Explain with example
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Junior Data Scientist

Interviewed at Stockland

3.1
Apr 15, 2019

1. Can you give a brief description of Exploratory Data Analysis and feature engineering? 2. We are trying to predict customer cancellations. Is this problem a classification problem or regression problem? 3. What is regularisation? How is it done? 4. In a regression output – each of the coefficients have estimates and p-values – can you briefly explain what those mean and how you might use that information? 5. What are precision and recall? Explain with example

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