# How is everybody doing

#1

I am having the same problem.
My code is

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)
length = len(numbers)
return((total) /len(numbers))

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

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")

def get_class_average(students):
results=[]
for student in students:
result = get_average(student)
results.append(result)
return(average(results))

class_average = get_class_average([lloyd,alice,tyler])
print(class_average)

and my output window shows :
83.8666666667
B

The error message I get is :
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