Hello friends,

I am strucked in student becomes teacher part of the whole exercise. I have written the below code and i get the below error. I have no clue where have i gone wrong. Also, I have used the print statements to make the program more clear to analyze where i did wrong which does not show any error due to those print statements. I request friends to me help me.Thanking you*Oops, try again. get_class_average([alice]) returned 85.6875 instead of 91.15 as expected*

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]

}

```
students =[lloyd,alice,tyler]
results =[]
def average(numbers):
total = sum((numbers))
total = float(total)
numbers = len(numbers)
total = total/numbers
return total
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
def get_class_average(students):
for student in students:
results.append(get_average(student))
return average(results)
get_class_average(students)
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"
weightlloyd = get_average(lloyd)
print weightlloyd
grade = get_letter_grade(weightlloyd)
print "grade of lloyd is %s:" %grade
weightalice = get_average(alice)
print weightalice
weighttyler = get_average(tyler)
print weighttyler
print "average of lloyd"
total = average(lloyd["homework"])
print "avg of lloyd homework is %f:" %total
total =average(lloyd["quizzes"])
print "avg of lloyd quizzes is %f:"%total
total =average(lloyd["tests"])
print "avg of lloyd tests is %f:" %total
print "average of alice"
total = average(alice["homework"])
print "avg of alice homework %f:"%total
total = average(alice["quizzes"])
print "avg od alice quizzes is %f:" %total
total = average(alice["tests"])
print "avg of alice tests %f:" %total
print "average of tyler"
total = average(tyler["homework"])
print "avg of tyler homework is %f:" %total
total = average(tyler["quizzes"])
print "avg of tyler quizzes is %f:"%total
total = average(tyler["tests"])
print "avg of tyler tests is %f:" %total
```