On 17/09/2013 00:33, William Bryant wrote:
Hey I am new to python so go easy, but I wanted to know how to make a program
that calculates the maen.
List = [15, 6, 6, 7, 8, 9, 40]
def mean():
global themean, thesum
You're iterating through every number in the list...
for i in List:
counting how many times each number occurs in the list:
thecount = List.count(i)
This line calculates the sum of the numbers on every iteration:
thesum = sum(List)
This line divides the sum of the numbers by the last count:
themean = thesum / thecount
Why doesn't this work?
It does work; it just doesn't calculate the mean!
What you end up with is:
themean = sum(List) / List.count(40)
What you _really_ want is the sum of the numbers divided by the
number of numbers (i.e. the length of the list).
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