Can Someone help me at : How is Everybody Doing?


#1

Link:
https://www.codecademy.com/courses/python-beginner-en-qzsCL/1/5?curriculum_id=4f89dab3d788890003000096

I keep getting an error which says:"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"

Can someone please help me?

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=0.1*average(student["homework"])
    quizzes=0.3*average(student["quizzes"])
    tests=0.6*average(student["tests"])
    return homework+quizzes+tests
    
def get_letter_grade(score):
    return "A" if score>=90 else "B" if score>=80 else "C" if score>=70 else "D" if score>=60 else "F"    
    
def get_class_average(students):
	results = []
	for student in students:
		results.append(get_average(student))
	return average(results)

print get_class_average([lloyd, alice, tyler])
print get_letter_grade(get_class_average([lloyd, alice, tyler]))


#2

Hi, @tanyixun ,

As of Exercise 3: Put It Together, you should have this assignment statement to establish a global variable, students ...

students = [lloyd, alice, tyler]

Then, consider how you can use that variable, here ...

print get_class_average([lloyd, alice, tyler])
print get_letter_grade(get_class_average([lloyd, alice, tyler]))

#3

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