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| Section | Objectives |
|---|---|
| Testing and Debugging | - Trace Errors - Unit Testing Concepts - Debugging Techniques |
| Data Structures | - Tuples - Lists and List Operations - String Manipulation - Dictionaries - Sets |
| Functions | - Recursion - Parameters and Arguments - Return Values - Function Definition and Call - Scope (local and global) |
| Control Structures | - Conditional Statements (if, elif, else) - Loop Control (break, continue, pass) - Loops (for, while) - Nested Conditionals and Loops |
| Python Fundamentals | - Input/Output Operations - Variables and Data Types - Operators and Expressions - Type Conversion |
| Object-Oriented Programming | - Classes and Objects - Encapsulation - Attributes and Methods - Inheritance - Constructors (__init__) |
| File Handling and Exceptions | - Custom Exceptions - Exception Handling (try, except, finally) - Reading and Writing Files |
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NEW QUESTION # 37
Write a complete function calculate_average(grades) that takes a list of grades and returns the average as a float.
For example, calculate_average([85, 92, 78]) should return 85.0.
def calculate_average(grades):
# TODO: Calculate and return the average grade as a float
pass
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: The function receives one parameter named grades, which is a list of numbers.
Step 2: Use sum(grades) to add all the grades together.
Step 3: Use len(grades) to count how many grades are in the list.
Step 4: Divide the total by the number of grades.
Correct code:
def calculate_average(grades):
return sum(grades) / len(grades)
Example:
print(calculate_average([85, 92, 78]))
Output:
85.0
NEW QUESTION # 38
Which Python data structure allows duplicate values and supports methods like append() and remove()?
Answer: D
Explanation:
A list is a Python data structure that can store multiple values. Lists can contain duplicate values, and they support methods such as append() and remove().
Example:
fruits = [ " apple " , " banana " , " apple " ]
fruits.append( " orange " )
fruits.remove( " banana " )
print(fruits)
Output:
[ ' apple ' , ' apple ' , ' orange ' ]
The value " apple " appears more than once, showing that lists allow duplicates.
The official Python documentation lists list.append() as a method that adds an item to the end of a list and list.
remove() as a method that removes the first matching value from a list.
Therefore, the correct answer is C. List.
NEW QUESTION # 39
What advantage does an integrated terminal provide compared to using a separate terminal application?
Answer: D
Explanation:
An integrated terminal is built into a development environment or code editor. Its main advantage is that the developer can write code and run terminal commands in the same application.
This avoids switching back and forth between a separate terminal window and the code editor.
Therefore, the correct answer isC. Eliminates need to switch between applications.
NEW QUESTION # 40
Fix the missing return statement in this function that should return whether a number is even.
def is_even(number):
if number % 2 == 0:
True
else:
False
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: The expression number % 2 == 0 checks whether the number is even.
Step 2: The original code writes True and False, but it does not return them.
Step 3: A function must use the return statement to send a value back to the caller.
Correct code:
def is_even(number):
if number % 2 == 0:
return True
else:
return False
Simplified correct code:
def is_even(number):
return number % 2 == 0
Example:
print(is_even(4))
print(is_even(7))
Output:
True
False
NEW QUESTION # 41
What does the string method ' ' .join() return when applied to the list [ ' Hello ' , ' World ' ]?
Answer: D
NEW QUESTION # 42
......
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