Top 20 Pandas Interview Questions and Solutions | Master Python Pandas for

"Welcome to Hack Coding with Uday! In this video, we cover the top 20 pandas interview questions and their solutions to help you prepare for your next data science or Python interview. Pandas is one of the most powerful and essential libraries for data manipulation in Python, used by data scientists, analysts, and engineers worldwide. Whether you're prepping for an interview or just brushing up on your skills, this video will guide you through the key pandas operations you must know.

From basic operations like retrieving data from a DataFrame to more advanced concepts like joining tables, handling missing values, and working with grouped data, this video has it all! Understanding these core pandas concepts is critical for both technical interviews and real-world data projects.

Key Pandas Operations Covered in This Video:
Retrieving all data from a DataFrame
Filtering rows based on conditions
Finding and removing duplicate rows
Retrieving unique/distinct values from a column
Counting the number of rows or values in a column
Grouping data by columns and performing aggregate operations
Merging and joining multiple DataFrames
Handling missing/null values in the dataset
Sorting data by columns (ascending/descending)
Calculating summary statistics like mean, sum, and standard deviation
Ranking data within the DataFrame
Using string methods to filter and modify text data
Finding rows based on datetime conditions
Calculating differences between maximum and minimum values
Applying functions to columns using apply()
Pivoting data for easier analysis
Reshaping the DataFrame using melt() and pivot_table()
Working with hierarchical (multi-level) indexes
Using .loc and .iloc to select specific rows and columns
Efficiently loading and saving data to CSV, Excel, and other formats
Why This Video is Essential:
Whether you’re preparing for a data science interview or trying to improve your pandas skills, this video will equip you with the practical knowledge you need. We’ll go beyond just answering questions — you’ll understand how to think through each problem, solve it step-by-step, and learn key tips and tricks for efficient data manipulation in Python.

Who is this Video For?
Beginners: New to pandas and data analysis? This video will give you a solid foundation in working with pandas.
Intermediate/Advanced Users: Already comfortable with pandas? These questions will challenge your understanding and help you become more proficient.
Interview Candidates: If you’re preparing for a technical interview, this video will guide you through the essential questions you’ll face in interviews.
Additional Learning Resources:
Don’t forget to check out my other videos for more in-depth tutorials on Python, pandas, and coding interview preparation. Also, subscribe to Hack Coding with Uday for future videos on coding tips, interview questions, and deep dives into popular libraries like pandas, NumPy, and more.

If you found this video helpful, please give it a thumbs up, share it with your friends, and hit the bell icon so you don’t miss future uploads. Drop a comment if you have any questions or requests for other topics you’d like me to cover in future videos. Happy coding!"