# 5/9 C'est pas mal d'être dans la moyenne

#1

J'ai l'erreur : moyenne([3, 0]) a induit une erreur : float() argument must be a string or a number qui s'affiche.
Mon programme est :

lloyd = {
"noms": "Lloyd",
"devoirs": [90.0, 97.0, 75.0, 92.0],
"quiz": [88.0, 40.0, 94.0],
"tests": [75.0, 90.0]
}
alice = {
"noms": "Alice",
"devoirs": [100.0, 92.0, 98.0, 100.0],
"quiz": [82.0, 83.0, 91.0],
"tests": [89.0, 97.0]
}
tyler = {
"noms": "Tyler",
"devoirs": [0.0, 87.0, 75.0, 22.0],
"quiz": [0.0, 75.0, 78.0],
"tests": [100.0, 100.0]
}

# Ajoutez votre fonction ci-dessous !

def moyenne(nombre):
nombres = float(0)
total = sum(nombres)
total = float(total)
taille = len(nombres)
total = total / taille

#2

### the FUNCTION talk

def myFunc( param1, param2):
# Begin of =myFunc= FUNCTION-BODY
# this =myFunc= function- has 2 PARAMETERS param1 and param2
# param1 and param2 PARAMETERS are used
# as -local- VARIABLES throughout the =myFunc= FUNCTION-BODY
print( param1 + " and " + param2 )
#End of =myFunc= FUNCTION-BODY

If you want to call/execute the myFunc function
you will have to add a pair of parentheses to myFunc
like
myFunc()
As the myFunc function was defined
as having 2 parameters
you have to provide 2 arguments
in our case 2 string VALUES "Alena" and "Lauren"
like
myFunc("Alena","Lauren")

some quotes from the outer-world:

**argument is the value/variable/reference being passed in,
parameter is the receiving variable used within the function/block**

OR

**"parameters" are called "formal parameters",
while "arguments" are called "actual parameters".**

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++++ function with 1 parameter using return-statement

def myFunction( param1 ):
# //Begin of =myFunction= FUNCTION-BODY
# //=myFunction= function has 1 PARAMETER param1
# //this param1 PARAMETER is used as a -local- VARIABLE
# //throughout the =myFunction= FUNCTION-BODY
return param1;
# //End of FUNCTION-BODY

You have defined a myFunction function
which takes 1 parameter param1
this param1 parameter is used
as a variable throughout the =myFunction= FUNCTION-BODY.

If you want to call/execute this myFunction function
and this myFunction function was defined
as having 1 parameter param1
you will have to provide 1 argument
in our case a "number VALUE" 4
myFunction( 4 )

some quotes from the outer-world:

**argument is the value/variable/reference being passed in,
parameter is the receiving variable used within the function/block**

OR

**"parameters" are called "formal parameters",
while "arguments" are called "actual parameters".**

#3

def moyenne(nombre):
# =nombre= is the PARAMETER
# =nomber= will be used as a VARIABLE
# if you =call= the =moyenne= function
# you will have to provide 1 ARGUMENT being a =list= like [1,2,3]
#=================================================================
#nombres = float(0)
total = sum(nombre)
print total
total = float(total)
print total
taille = len(nombre)
#total = float(total) / float(taille)
return float(total) / float(taille)

# Now call the =moyenne= function with a =list= ARGUMENT
print moyenne( [3,4,5,7] )

#4