  x = zeros ( 150, 1 );
  y = zeros ( 150, 1 );
  
  for n = 1 : 150
    x(n) = n;
    y(n) = hail_count ( n );
  end
  
  plot ( x, y, 'bo' )     %  'bo' means plot data using blue circles.
  
  print ( '-dpng', 'hail_count_plot.png' )  % Save a copy of your plot
