Problem Solving using Python and R - UNIT II - List

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

• append()

• add()

• insert()

• extend()

Which of the following will create a list in Python?

• list = (1, 2, 3)

• list = [1, 2, 3]

• list = {1, 2, 3}

• list = <1, 2, 3>

How do you access the first element of a list named `my_list`?

• my_list[0]

• my_list(1)

• my_list{1}

• my_list.first()

What will be the output of the following code: `print([1, 2, 3] + [4, 5])`?

• [1, 2, 3, 4, 5]

• [1, 2, 3, [4, 5]]

• [4, 5, 1, 2, 3]

• [1, 2, 3, 5]

Which method is used to remove an item from a list by its value?

• delete()

• remove()

• discard()

• pop()

What will be the output of `len([1, 2, 3, 4])`?

• 3

• 4

• 5

• None

Which of the following statements is true about lists in Python?

• Lists are immutable.

• Lists can contain elements of different data types.

• Lists can only contain integers.

• Lists cannot be nested.

What does the `pop()` method do when called on a list?

• Removes the first element

• Removes the last element and returns it

• Clears the entire list

• Returns the last element without removing it

How can you sort a list named `numbers` in ascending order?

• numbers.sort()

• sort(numbers)

• numbers.order()

• numbers.arrange()

What will be the result of the following code: `my_list = [1, 2, 3]; my_list[1:3]`?

• [1, 2]

• [2, 3]

• [1, 2, 3]

• [3]