I am not stuck, just have a question about:

students=[lloyd,alice,tyler]

print get_class_average(students)

print get_letter_grade(get_class_average(students))

Why to do it as above, when we can write:

print get_class_average([alice,lloyd, tyler])

print get_letter_grade([alice,lloyd, tyler])

Second worked in section 8, but did not in 9

```
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 = sum(numbers)
total = float(total)
total = total/len(numbers)
return total
def get_average (student):
homework = average(student['homework'])
quizzes = average(student['quizzes'])
tests = average(student['tests'])
return homework * 0.1 + quizzes * 0.3 + tests * 0.6
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):
results = []
for student in students:
results.append(get_average(student))
return average(results)
students=[lloyd,alice,tyler]
print get_class_average(students)
print get_letter_grade(get_class_average(students))
```