#
# Sep 16 homework 
# chap 3 exercise 14
# Jim Mahoney's example solution.
#
# Find the average of numbers entered by the user.
#
# The problem doesn't say how to determine how
# many numbers will be entered. There are several approaches:
#  (1) Ask the user how many numbers will be entered,
#      then use a "for" loop to ask again that many times.
#  (2) Ask the user to type a list, i.e. [2, 3, 6, 10],
#      then use a "for" loop to iterate over that list.
#  (3) Ask for one number at a time, with some special
#      signal (like a blank line) to indicate that
#      there are no more numbers. This approach is
#      a bit beyond us now, though it'll work once we
#      learn string input (to detect the blank line)
#      and conditionals (to do something different
#      when we get to the blank line).
# I'll implement approach (1) here.

print "-- chap3ex14.py --"
print "Find the average of numbers entered by the user."

def find_average():
    count = input("How many numbers will be input? ")
    total = 0.0    # floating point, not integer.
    for i in range(1, count+1):
        number = input("  number " + str(i) + ": ")
        total = total + number
    print "The average is ", (total / count)

find_average()