EXL Interview Questions

EXL Interview Questions for a full-time job as a Business Analyst.

Process: An aptitude test followed by two rounds of interviews.

Placement Process

Round 1: 

1. Walk me through your cv.
2. Difference between mean, median and mode.
3. One real life example in which the median is more preferable to mean.
4. Difference between normal distribution and standard normal distribution.
5. Assumptions of linear regression.
6. What is multicollinearity and why is it a problem?
7. Difference between lists and tuples.
8. How to create a dataframe from a dictionary in pandas?
9. What technique and python library were used in splitting the datasets?
10. Guesstimate – You have a mall in your town, Estimate the number of vehicles parked in its parking lot.

Round 2: 

1. Walk me through your cv.
2. Tell me about your projects.
3. How does logistic regression work and how to interpret it?
4. Difference between accuracy, recall, precision and f1-score and how to choose between them.
5. Difference between R squared and adjusted R squared.
6. Which is better, RMSE or MSE and why?
7. Guesstimate – Estimate the number of refrigerators sold in Delhi per year

Other Important Topics

1. Types of Joins in SQL
2. Inner vs Outer vs Full Join
3. Writing Join Queries in SQL for two problem statements

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