text: import random
  
  Lista = []
  
  suma=0
  sumaV=0
  varianza=0
  for rand in range(100):
      r = round(random.uniform(10,20), 3)
      Lista.append(r)
      suma += r
  print(Lista)
  media = suma/100
  
  for x in Lista:
      sumaV += ((x - media)**2)
  
  varianza = sumaV /99
  print(suma)
  print ( "la media es = ", media)
  print(sumaV)
  print ("la varianza es =", varianza)
  
  
  