8. Part of the whole get_class_average([alice]) returned 83.8666666667 instead of 91.15


#1



I can't work out where I'm going wrong... every time I try and fix it a different number is expected.

lloyd = {
"name": "Lloyd",
"homework": [90.0, 97.0, 75.0, 92.0],
"quizzes": [88.0, 40.0, 94.0],
"tests": [75.0, 90.0]
}
alice = {
"name": "Alice",
"homework": [100.0, 92.0, 98.0, 100.0],
"quizzes": [82.0, 83.0, 91.0],
"tests": [89.0, 97.0]
}
tyler = {
"name": "Tyler",
"homework": [0.0, 87.0, 75.0, 22.0],
"quizzes": [0.0, 75.0, 78.0],
"tests": [100.0, 100.0]
}

Add your function below!

def average(numbers):
total = float(sum(numbers))
total = total / len(numbers)
return total

def get_average(student):
homework = average(student["homework"]) * 0.1
quizzes = average(student["quizzes"]) * 0.3
tests = average(student["tests"]) * 0.6
return sum([homework, quizzes, tests])

def get_letter_grade(score):
if score >= 90:
return "A"
elif score >= 80:
return "B"
elif score >= 70:
return "C"
elif score >= 60:
return "D"
else:
return "F"

print get_letter_grade(get_average(lloyd))

def get_class_average(students):
students = [lloyd, alice, tyler]
results = []
for student in students:
results.append(get_average(student))
return average(results)

`


#2

Here is my formatted code

lloyd = {
    "name": "Lloyd",
    "homework": [90.0, 97.0, 75.0, 92.0],
    "quizzes": [88.0, 40.0, 94.0],
    "tests": [75.0, 90.0]
}
alice = {
    "name": "Alice",
    "homework": [100.0, 92.0, 98.0, 100.0],
    "quizzes": [82.0, 83.0, 91.0],
    "tests": [89.0, 97.0]
}
tyler = {
    "name": "Tyler",
    "homework": [0.0, 87.0, 75.0, 22.0],
    "quizzes": [0.0, 75.0, 78.0],
    "tests": [100.0, 100.0]
}

# Add your function below!
def average(numbers):
    total = float(sum(numbers))
    total = total / len(numbers)
    return total

def get_average(student):
    homework = average(student["homework"]) * 0.1
    quizzes = average(student["quizzes"]) * 0.3
    tests = average(student["tests"]) * 0.6
    return sum([homework, quizzes, tests])

def get_letter_grade(score):
    if score >= 90:
        return "A"
    elif score >= 80:
        return "B"
    elif score >= 70:
        return "C"
    elif score >= 60:
        return "D"
    else:
        return "F"

print get_letter_grade(get_average(lloyd))

def get_class_average(students):
    students = [lloyd, alice, tyler]
    results = []
    for student in students:
        results.append(get_average(student))
    return average(results)

#3

The exact code found in this topic, so the best place to find the error explained:

https://discuss.codecademy.com/t/part-of-the-whole-error-message-but-cant-see-a-mistake/63623


#4

Thanks! I'll have a look


#5

This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.