512 interview questions for Data Scientist (2024)

27 votes1206 runs1 comment

26 votes2096 runs0 comment

15 votes1565 runs0 comment

Théoat Mar 28, 2022

13 votes2019 runs1 comment

12 votes2070 runs0 comment

12 votes610 runs0 comment

machine learning

deep learning

Martinat Sep 19, 2022

11 votes907 runs0 comment

machine learning

missing data

Martinat Apr 4, 2022

10 votes2079 runs0 comment

10 votes2060 runs0 comment

9 votes2021 runs4 comments

9 votes1973 runs0 comment

9 votes842 runs1 comment

8 votes1416 runs0 comment

Théoat Mar 28, 2022

7 votes1605 runs0 comment

Théoat Jan 23, 2023

7 votes815 runs0 comment

machine learning

missing data

Martinat Apr 4, 2022

7 votes721 runs0 comment

scikit-learn

logistic regression

7 votes684 runs0 comment

neural network

back propagation

7 votes635 runs0 comment

Martinat Mar 14, 2022

6 votes2052 runs0 comment

6 votes882 runs0 comment

hyperparameters

Martinat Mar 15, 2022

512 interview questionsfor Data Scientist (2024)

Test your technical skills before an interview of Data Scientist with 512 corrected questions. Beginner, Intermediate or Expert level.

512 interview questionsfor Data Scientist (2024)

Test your technical skills before an interview of Data Scientist with 512 corrected questions. Beginner, Intermediate or Expert level.

Write a Python function that returns the factorial of a number.

Write a SQL query to retrieve the list of employees with a salary greater than 5100.

Write a Python function that prints the elements of a list.

Update a column in an SQL table

Select only distinct values in a column using SQL

What is the relation between Artificial intelligence (AI), machine learning and deep learning?

How to handle missing data in a given training data set ?

Write a SQL query to insert data into a table

Which SQL keyword is used to sort the result of a SELECT statement?

Write the SQL query to delete a column from a table

Write a SQL query to retrieve the products with a price less than 1000 and sort the results in descending order of price.

Write a SQL query to retrieve the titles of books written by 'John Smith'.

Use the zip() function to iterate over two lists in parallel.

Start a HTTP server from the CLI with python

How to handle missing data in a given training data set ?

What is the value of the decision threshold used with logistic regression in Scikit-learn?

How is the error calculated during back propagation in a neural network?

What is the missing word in the following sentence: Overfitting is the production of a model that corresponds too closely to the training data set and may therefore fail to fit other data sets and so fail to perform any reliable forecast.

How to delete an SQL table?

The validation set is used to provide frequent and unbiased evaluations of the model’s fit on the training set while tuning its hyperparameters/parameters: in other words,the model is found and then tested on the validation set before to be improved once again.