8. Part of the Whole


#1

<PLEASE USE THE FOLLOWING TEMPLATE TO HELP YOU CREATE A GREAT POST!>

<Below this line, add a link to the EXACT exercise that you are stuck at.>
https://www.codecademy.com/courses/learn-python/lessons/student-becomes-the-teacher/exercises/part-of-the-whole

<In what way does your code behave incorrectly? Include ALL error messages.>
get_class_average([alice]) returned 79.9 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]
}


# Add your function below!
def average(numbers):
  total = sum(numbers)
  total = float(total)
  average_total = total / len(numbers)
  return average_total

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

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

#2

in your for loop:

for studnet in students:

you misspelled student


#3

Oops this is embarrasing. thanks!


#4

Nothing to be ashamed of, you won’t be the last person to make a typo :wink:


#5