I have figured out how to make it find the maximum and minimum but I cannot figure out the average. Any help will be greatly appreciated.
minimum=None maximum=None while True: inp= raw_input("Enter a number:") if inp == 'done': #you must type done to stop taking your list break try: num=float(inp) except: print 'Invalid input' continue if minimum is None or num<minimum: minimum = num if maximum is None or num>maximum: maximum = num print "Maximum:", maximum print "Minimum:", minimum If you keep track of the amount of numbers entered and also the sum of all the numbers entered then you can calculate the average. e.g.:
n = 0 # count of numbers entered s = 0.0 # sum of all numbers entered while True: inp = raw_input("Enter a number:") try: num = float(inp) except: print 'Invalid input' continue n += 1 s += num print "Average", s / n This answer (I've searched about 1sec) gives me
l = [15, 18, 2, 36, 12, 78, 5, 6, 9] print reduce(lambda x, y: x + y, l) / len(l) for arbitrary lists.
in order to calculate the average also called the mean you need to keep a running list of the numbers you've collected.
nums = [] while True: inp= raw_input("Enter a number:") if inp == 'done': #you must type done to stop taking your list break try: num=float(inp) nums.append(num) except: print 'Invalid input' continue if minimum is None or num<minimum: minimum = num if maximum is None or num>maximum: maximum = num print "Maximum:", maximum print "Minimum:", minimum print "Average:", sum(nums)/len(nums) 