What method in Python is used to add an element at the end of a list?

• add()

• extend()

• insert()

• append()

How are tuples different from lists in Python?

• Tuples are immutable, while lists are mutable.

• Tuples are mutable, while lists are immutable.

• Tuples are ordered, while lists are unordered.

• Tuples use square brackets, while lists use parentheses.

Which of the following methods is used to concatenate two tuples in Python?

• merge()

• append()

• The '+' operator

• extend()

How is a single-element tuple defined in Python?

• (element)

• (element,)

• [element]

• element,

What is the primary characteristic of a set in Python?

• Does not allow duplicate elements

• Allows duplicate elements

•  Maintains elements in order of insertion

• Stores elements in key-value pairs

In a list, what method is used to remove the last element?

• remove()

• pop()

• discard()

• delete()

What is the primary difference between a set and a list in Python?

• Sets allow duplicate elements, whereas lists do not.

• Lists are unordered, while sets are ordered.

• Lists are immutable, while sets are mutable.

• Sets do not allow duplicate elements, whereas lists do.

What does the 'difference()' method do in sets in Python?

• Returns the symmetric difference of two sets

• Returns the intersection of two sets

• Returns the difference of two sets

• Returns the union of two sets

In NumPy, what does the shape of an array represent?

• Number of elements in the array

• Number of dimensions and size along each dimension

• Data type of the array

• Total size of the array

What is the primary data structure in pandas for one-dimensional labelled data?

• DataFrame

• Series

• Array

• List