11. In Pandas, what method is used to remove missing values from a DataFrame?
12. Which Python library is commonly used for machine learning and predictive modeling?
13. What Python library provides interactive and web-based data visualizations?
14. What is the primary data structure in Numpy used for storing and performing operations on numerical data?
15. In Pandas, what method is used to calculate summary statistics for numerical columns in a DataFrame?
16. Which Python library is commonly used for data exploration and data cleaning tasks, providing interactive and user-friendly interfaces?
17. In Pandas, which method is used to sort a DataFrame by the values in one or more columns in ascending or descending order?
18. What is the primary purpose of the Seaborn library in Python for data analysis and visualization?
19. In Python, which library is often used for creating interactive dashboards and web applications for data analysis and visualization?
20. What Python function is used to perform element-wise mathematical operations on Numpy arrays?
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