How is everybody doing? Wrong class average score printed


#1

https://www.codecademy.com/en/courses/learn-python/lessons/student-becomes-the-teacher/exercises/how-is-everybody-doing-

The code appears to be working on student averages, and letter grade, but the class average is incorrectly coming out as 80.55 (same as Lloyd’s average)

PRINTED OUT :

80.55
91.15
79.9
80.55
B

Have looked at others code but can’t seem to find where I’ve got it wrong
appreciate any help :slight_smile:



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)
  return total / len(numbers)

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

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_average(lloyd)
print get_average(alice)
print get_average(tyler)

def get_class_average(class_list):
  results = []
  for name in class_list:
    results.append(get_average(name))
    return average(results)

students_list = [lloyd, alice, tyler]

print get_class_average(students_list)
print get_letter_grade(get_class_average(students_list))



#2

Hi @manicalmagic,

Is this line in the get_class_average function indented correctly? …

    return average(results)

#3

nooo! silly me
thanks :slight_smile:


#4