test

Which Python library is mainly used for data analysis?

• Matplotlib
• Pandas
• Numpy
• Seaborn
• SciPy

What is the output of: `len([1, 2, 3, 4])` in Python?

• 3
• 4
• 5
• Error
• None

Which function is used to read a CSV file in pandas?

• read_csv()
• read_file()
• load_csv()
• open_csv()
• import_csv()

Which of these is a data visualization library in Python?

• Pandas
• Numpy
• Matplotlib
• Random
• Sklearn

What does the head() function do in pandas?

• Returns last 5 rows
• Returns all rows
• Returns first 5 rows
• Creates a new row
• Deletes rows

Which of the following data types can a pandas DataFrame hold?

• Strings
• Integers
• Floats
• All of the above
• None

What does `df.describe()` show in pandas?

• Only column names
• Summary statistics
• Graph of the data
• Only null values
• All column values

Which Python keyword is used to define a function?

• func
• define
• def
• function
• fn

Which operator is used for exponentiation in Python?

• ^
• **
• *
• //
• %

Which of the following is used for machine learning in Python?

• TensorFlow
• PyTorch
• Scikit-learn
• All of the above
• None of the above