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| Section | Objectives |
|---|---|
| Debugging and Testing Basics | - Basic testing concepts - Error identification and correction |
| Introduction to Object-Oriented Programming | - Basic OOP concepts - Classes and objects |
| Data Structures | - Basic data manipulation - Lists, tuples, dictionaries |
| File Handling and Exceptions | - Exception handling (try/except) - Reading and writing files |
| Functions and Modularity | - Modules and imports - Function definition and scope |
| Control Flow | - Loops (for, while) - Conditional statements (if / elif / else) |
| Python Programming Fundamentals | - Operators and expressions - Variables and data types - Syntax and basic structure |
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NEW QUESTION # 34
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 # 35
Complete the function is_positive(number) that returns True if the number is greater than 0, and False otherwise.
def is_positive(number):
# TODO: Return True if number > 0, False otherwise
pass
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: The function receives one parameter named number.
Step 2: The condition number > 0 checks whether the number is positive.
Step 3: In Python, this comparison already returns either True or False.
Correct code:
def is_positive(number):
return number > 0
Example:
print(is_positive(5))
print(is_positive(-2))
print(is_positive(0))
Output:
True
False
False
NEW QUESTION # 36
Which keyword moves a loop immediately to its subsequent iteration?
Answer: C
Explanation:
The Python keyword continue is used inside a loop to skip the rest of the current iteration and move immediately to the next iteration.
Example:
for number in range(5):
if number == 2:
continue
print(number)
Output:
0
1
3
4
When number is 2, the continue statement skips print(number) for that iteration and moves to the next loop cycle.
The official Python documentation states that the continue statement continues with the next iteration of the loop.
Therefore, the correct answer is C. continue.
NEW QUESTION # 37
Fix the indexing error in this function that should return the last character of a string.
def get_last_character(text):
return text[len(text)]
Answer:
Explanation:
See the Step by Step Solution below in Explanation.
Explanation:
Step 1: Python string indexing starts at 0.
Step 2: The last valid index of a string is len(text) - 1, not len(text).
Step 3: Python also allows negative indexing, where -1 means the last character.
Step 4: Replace text[len(text)] with text[-1] .
Correct code:
def get_last_character(text):
return text[-1]
Example:
print(get_last_character( " Python " ))
Output:
n
NEW QUESTION # 38
Which loop structure processes every individual item in a list called grades?
Answer: C
Explanation:
The loop:
for grade in grades:
print(grade)
processes every individual item in the list grades.
The variable grade represents the current item being processed. Python's documentation explains that a for statement iterates over the items of a sequence in order.
Therefore, the correct answer isB. for grade in grades:.
NEW QUESTION # 39
......
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