i am in a little bit of a confusion here... i have an array of FLOATS (about 7000 entries), all of them are floats, and i need to make an average of the entries, if i am not mistaken, the math for finding the average is :
average = (element + next element ) / Total of elements
so in my case, i need to
average = (element  + element  + element  etc... ) / len(array)
i was looking at the manual for python and the list comprehension seems to be way to go, but i don't understand how to setup the expression to make it work, the example in the book (Mapping Lists )
[elem*2 for elem in li]
would produce the result, where EACH element of the array is multiplied by 2, and this is not what i need,
could some one point me in a direction?