2d lists in python

What is a 2D list in Python?

• A 2D list in Python is a single list with multiple dimensions.

• A 2D list in Python is a list of lists.

• A 2D list in Python is a list of tuples.

• A 2D list in Python is a dictionary of lists.

What is the syntax to access an element in a 2D list?

• list_name(row_index)(column_index)

• list_name[row_index, column_index]

• list_name[row_index][column_index]

• list_name[row_index][column_index]

Explain the concept of row and column in a 2D list.

• Rows go from right to left, and columns go from bottom to top in a 2D list.

• Rows go from bottom to top, and columns go from left to right in a 2D list.

• Rows go from left to right, and columns go from top to bottom in a 2D list.

• Rows go from top to bottom, and columns go from left to right in a 2D list.

What is the difference between a 1D list and a 2D list?

• 1D lists can only store integers, while 2D lists can store any data type.

• In a 1D list, elements are arranged vertically, while in a 2D list, elements are arranged horizontally.

• In a 1D list, elements are arranged in a single dimension, while in a 2D list, elements are arranged in multiple dimensions.

• 1D lists are used for text data, while 2D lists are used for numerical data.

Can a 2D list have different lengths of sublists?

• Rarely

• Yes

• No

• Sometimes

How do you add a new row to a 2D list?

• my_2d_list.extend(new_row)

• my_2d_list.insert(new_row)

• my_2d_list.add(new_row)

• my_2d_list.append(new_row)

What is the output of len(my_list) for a 2D list?

• Number of rows in the 2D list

• Sum of elements in the 2D list

• Total elements in the 2D list

• Number of columns in the 2D list