Question

Write a function named average_value_in_file that accepts a file name as a parameter and reads that file, assumed to be full of numbers, and returns the average (mean) of the numbers in that file. The parameter, filename, gives the name of a file that contains a list of numbers, one per line. You may assume that the file exists and follows the proper format. For example, if a file named input.txt contains the following numbers

Answer 1

def average_value_in_file(filename):

   f = open(filename)

   total = 0

   count = 0

   for x in f.read().splitlines():

       total += int(x)

       count += 1

   return total/count

print(average_value_in_file("input.txt"))

I used an input file that looks like this:

1

1

1

1