The error message is in the code editor only. The message says: “get_letter_grade(59) returned ‘false’ instead of ‘F’ as expected.”

I calculated the grade for Lloyd by hand, and I got 80.55. The right box does show a B, which is what I expected. Why is the code wrong?

```
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]
}
def average(numbers):
total = sum(numbers)
total = float(total)
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
return 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 "false"
print get_letter_grade(get_average(lloyd))
```