Find average age of students.

def setup():
   name = ["Gun", "Rit", "Frame"]
   ID = [32075, 32078, 32080]
   age = [25, 25, 19]
   weight = [80, 75, 58.2]
   height = [1.74, 1.70, 1.73]
   print(average(age))
 
def average(age):
   i = 0
   sum = 0
   n = 0
   average = 0
   while(i < len(age)):
      sum = sum + age[i]
      n = n + 1
      average = sum/n
      i = i + 1
   return average

setup()