Top Data Analyst Interview Questions & Answers -
1. What are the key requirements for becoming a Data Analyst?
2. What are the important responsibilities of a data analyst?
3. What does “Data Cleansing” mean? What are the best ways to practice this?
4. Name the best tools used for data analysis.
5. What is the difference between data profiling and data mining?
6. What is KNN imputation method?
7. What should a data analyst do with missing or suspected data?
8. Name the different data validation methods used by data analysts.
9. Define Outlier
10. What is “Clustering?” Name the properties of clustering algorithms.
11. What is K-mean Algorithm?
12. Define “Collaborative Filtering”.
13. Name the statistical methods that are highly beneficial for data analysts?
14. What is an N-gram?
15. What is a hash table collision? How can it be prevented?
16. Define “Time Series Analysis”.
17. How should you tackle multi-source problems?
18. Mention the steps of a Data Analysis project.
19. What are the problems that a Data Analyst can encounter while performing data analysis?
20. What are the characteristics of a good data model?
21. Differentiate between variance and covariance.
22. Explain “Normal Distribution.”
23. Explain uni-variate, bi-variate, and multivariate analysis.
24. Explain the difference between R-Squared and Adjusted R-Squared.
25. What are the advantages of version control?
