code: def find_peak(data, cutoff=.9):
      '''
      This will look for the point where cumulative cutoff is reached. For
      example:
  
      >>> find_peak({0: 27, 1: 71, 2: 1})
      1
      '''
      total_length = sum(data.values())
      count_cutoff = cutoff * total_length
      cum_sum = 0
      for i, count in sorted(data.items()):
          cum_sum += count
          if cum_sum > count_cutoff:
              return f find_peak(data, cutoff=.9):
      '''
      This will look for the point where cumulative cutoff is reached. For
      example:
  
      >>> find_peak({0: 27, 1: 71, 2: 1})
      1
      '''
      total_length = sum(data.values())
      count_cutoff = cutoff * total_length
      cum_sum = 0
      for i, count in sorted(data.items()):
          cum_sum += count
          if cum_sum > count_cutoff:
              return i
docs: This will look for the point where cumulative cutoff is reached. For
      example:
  
      >>> find_peak({0: 27, 1: 71, 2: 1})
      1