text: # Python program to print
  # mean of elements
  
  # list of elements to calculate mean
  import csv
  with open('height-weight.csv', newline='') as f:
      reader = csv.reader(f)
      file_data = list(reader)
  
  file_data.pop(0)
  # print(file_data)
  # sorting data  to get the height of people.
  new_data=[]
  for i in range(len(file_data)):
  	n_num = file_data[i][1]
  	new_data.append(float(n_num))
  
  
  # #getting the mean
  n = len(new_data)
  total =0
  for x in new_data:
      total += x
  
  mean = total / n
  #
  print("Mean / Average is: " + str(mean))
  