Register
Courses Courses Feedback Feedback

Recent questions in Data Science Interview Questions

1 1 vote
0 0 answers
445
445 views
Data manipulation problem study resources
A colleague of mine is studying for tech roles, and they're asked to solve a consistent type of problem during the phone screenings: practicing manipulating data (sets, h...
1 1 vote
1 1 answer
2.3k
2.3k views
Do you have a cheatsheet for Data Science?!
1 1 vote
1 1 answer
554
554 views
What is summary statistics?
1 1 vote
1 1 answer
13.9k
13.9k views
What is the difference between univariate and multivariate analysis?
1 1 vote
1 1 answer
1.7k
1.7k views
What is the purpose of randomization in statistics?
1 1 vote
1 1 answer
904
904 views
How will you create a classification to identify key customer trends in unstructured data?
1 1 vote
1 1 answer
1.3k
1.3k views
Mention some common problems that data analysts encounter during analysis.
1 1 vote
1 1 answer
986
986 views
Explain the typical data analysis process.
1 1 vote
1 1 answer
802
802 views
What is the difference between Data Mining and Data Analysis?
1 1 vote
1 1 answer
796
796 views
Which scenarios among the following are a valid reason to use regularization?
A. To drop the least useful variables of a modelB. To reduce over-fittingC. To reduce the bias of a modelD. To decrease p-value
1 1 vote
1 1 answer
569
569 views
How to transform categorical variable into a matrix binary feature?
Which of the following feature transformations would be a good choice to transform a categorical variable into a matrix binary feature?A. One-hot-encodingB. Principal Com...
1 1 vote
0 0 answers
455
455 views
What are the main steps in making a decision tree?
1 1 vote
0 0 answers
920
920 views
Please explain Linear Regression with an example?
1 1 vote
1 1 answer
1.6k
1.6k views
What are Natural Language Processing (NLP) and its applications?
1 1 vote
1 1 answer
2.1k
2.1k views
What is TF-IDF algorithm?
1 1 vote
1 1 answer
6.2k
6.2k views
When should we use Mean, Median or Mode as Measures of Central Tendency?
To see more, click for the full list of questions or popular tags.