61. In Pandas, which method is used to create a subset of a DataFrame by selecting rows based on a specified condition?
62. Which Python library is commonly used for data profiling and generating summary statistics for datasets?
63. What is the primary purpose of the "loc" method in Pandas when working with a DataFrame?
64. In Python, which library provides tools for working with databases and performing SQL queries using Pandas data structures?
65. Which Python library is commonly used for dimensionality reduction and feature selection techniques in machine learning?
66. In Pandas, what method is used to apply a function to each element of a Series?
67. What is the primary purpose of the "melt" function in Pandas when reshaping data?
68. In Python, which library provides tools for working with data in Excel files, including reading, writing, and manipulation?
69. Which Python library is commonly used for creating interactive data dashboards and web applications for data visualization?
70. In Pandas, which method is used to create a new column based on conditional logic applied to existing columns?
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