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The slice notation [1:3] returns elements from index 1 up to, but not including, index 3, so indices 1 and 2.

The pop() method removes and returns the last item in a list by default, or a specified index if provided.

The dropna() method in Pandas removes rows or columns containing missing values (NaN).

Seaborn is a Python library built on Matplotlib, designed for creating statistical visualizations.

The len() function returns the number of items in an object, such as a list, string, or tuple.

Matplotlib is a Python library used for creating static, interactive, and animated visualizations.

The append() method adds a single item to the end of a Python list.

The def keyword is used to define a function in Python, followed by the function name and parameters.

The code modifies the element at index 1 (second position) to 5, resulting in the list [1, 5, 3].

An index improves the speed of data retrieval operations on a database table.

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