<do not remove the t

```
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))
result = total / float(len(numbers))
return result
def get_average(student):
lloyd_homework=average(student['homework'])
lloyd_quizzes=average(student['quizzes'])
lloyd_tests=average(student['tests'])
lloyd_average_score=0.1*lloyd_homework+0.3*lloyd_quizzes\
+0.6*lloyd_tests
return lloyd_average_score
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))
score_lloyd=get_average(lloyd)
#print get_letter_grade(score_lloyd)
def get_class_average(students):
results=[]
for student in students:
score=get_average(student)
results.append(score)
return score
```

```
hree backticks below>
```

`Replace this line with your code.`