PCEP 3C: Collect and process data using tuples

Which of the following is the correct way to create a tuple in Python?

• `my_tuple = [1, 2, 3]`

• `my_tuple = (1, 2, 3)`

• `my_tuple = {1, 2, 3}`

• `my_tuple = tuple[1, 2, 3]`

What will be the output of the following code? ```python t = (10, 20, 30, 40) print(t[2]) ```

• 10

• 20

• 30

• 40

Which of the following statements about tuples is TRUE?

• Tuples are mutable.

• Tuples can be indexed and sliced.

• Tuples cannot contain lists.

• Tuples use curly braces for declaration.

Which of the following best describes the main difference between a tuple and a list in Python?

• Lists are immutable, tuples are mutable.

• Tuples are mutable, lists are immutable.

• Tuples are immutable, lists are mutable.

• Both are immutable.

Given the tuple `t = (5, 10, 15, 20, 25)`, what is the result of `t[1:4]`?

• (5, 10, 15)

• (10, 15, 20)

• (15, 20, 25)

• (10, 15, 20, 25)

Suppose you have the following data structure: `my_list = [(1, 2), (3, 4), (5, 6)]`. Which of the following statements is TRUE?

• Each element of `my_list` is a list.

• Each element of `my_list` is a tuple.

• `my_list` is a tuple of tuples.

• `my_list` is a tuple of lists.

You have a tuple `t = (1, [2, 3], 4)`. Which of the following operations will result in an error?

• `t[1][0] = 5`

• `t[0] = 10`

• `t[1].append(6)`

• `print(t[2])`

Given the following code, what will be the output? ```python my_tuple = (1, 2, 3) my_list = [4, 5, my_tuple] print(my_list[2][1]) ```

• 1

• 2

• 3

• Error

You are given a tuple `t = (1, 2, 3)` and a list `l = [1, 2, 3]`. You need to store a sequence of data that should not be changed throughout the program. Which data structure is more appropriate and why?

• List, because lists are faster.

• Tuple, because tuples are immutable.

• List, because lists can be indexed.

• Tuple, because tuples use less memory.

Suppose you want to store a collection of student records, where each record contains a student's name (string) and their grades (a list of integers). Which of the following data structures is most appropriate and why?

• A list of tuples, where each tuple contains a string and a list.

• A tuple of tuples, where each tuple contains a string and a list.

• A list of lists, where each list contains a string and a list.

• A tuple of lists, where each list contains a string and a list.