Def_average connection with a dictionery


#1

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)
total = total/len(numbers)
how does the def average function connects to the dictioneries since i didn’t define numbers but it still does do the calculation any ideas.


#2

function parameters (numbers) are placeholders. They don’t actually have a value yet.

Functions only execute when called, so when we call the function we provide argument(s) (this could be the dictionary for example) to give a value to the function parameter

as of this moment, there is no connection between your dictionary and your function.