Python Chapter 4 Questions and Answers Graded A+

Python Chapter 4 Questions and Answers Graded A+ What is the syntax for a `for` loop in Python? `for item in sequence:` What is a tuple in Python? A tuple is an immutable collection of elements. What is the correct way to define a tuple in Python? `tuple = (1, 2, 3)` How do you access the first element of a tuple in Python? `tuple[0]` What will the following code output? ```python for i in range(3): print(i) 2 ``` 0 1 2 How can you iterate through a list using a `for` loop? `for item in list:` What will the following code output? ```python my_tuple = (5, 10, 15) for num in my_tuple: print(num) ``` 5 10 15 Can tuples contain different data types? Yes 3 How do you create an empty tuple? `empty_tuple = ()` How do you change a value in a tuple? You cannot change values in a tuple because it is immutable. What is the output of the following code? ```python my_tuple = (1, 2, 3) print(len(my_tuple)) ``` 3 What is the use of `range()` in a `for` loop? It generates a sequence of numbers. How do you unpack a tuple in Python? 4 `x, y, z = (1, 2, 3)` What is the output of the following code? ```python my_tuple = (1, 2, 3) for item in my_tuple: