title: TypeError: 'float' object is not callable what does it mean?
body: <pre><code>from random import uniform
  
  def e(x):
      n=len(x)
      return(sum(x)/n)
  
      def dmean(e,x,new):
      n=len(x)
      return((e*n+new)/(n+1))
  
      l=[1,2,3,4,5,6,78]
      e(l)
  
      for i in range(0,5):
      l.append(uniform(0,10))
      e=e(l)
      d=dmean(e,l,uniform(0,10))
  </code></pre>