```
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/ len(numbers)
return result
def get_average(student):
homework = average(student["homework"]) * 0.1
quizzes = average(student["quizzes"]) * 0.3
tests = average(student["tests"]) * 0.6
t= homework + quizzes + tests
return t
def get_letter_grade(score):
if score>=90:
return 'A'
elif score >=80 and score <90:
return 'B'
elif score >=70 and score <80:
return 'C'
elif score >=60 and score<70:
return 'D'
else:
return 'F'
get_letter_grade(get_average(lloyd))
print get_letter_grade
def get_class_average(students):
results = [ ]
for s in students:
results.append(get_average(s))
return average(results)
print results
print get_letter_grade(results)
```

# Oops, try again. One of the following is missing or broken when we tried to use it: alice, lloyd, tyler, students, get_class_average, get_letter_grade

**stetim94**#6

all the exercises within a track (students become teachers is the track you are at) are named and numbered, there is a hamburger navigation menu in the bottom left

**system**#8

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