title: Plot Normal distribution with Matplotlib
body: <p>please help me to plot the normal distribution of the folowing data:</p>
  
  <p>DATA:</p>
  
  <pre><code>import numpy as np
  import matplotlib.pyplot as plt
  from scipy.stats import norm
  
  h = [186, 176, 158, 180, 186, 168, 168, 164, 178, 170, 189, 195, 172,
       187, 180, 186, 185, 168, 179, 178, 183, 179, 170, 175, 186, 159,
       161, 178, 175, 185, 175, 162, 173, 172, 177, 175, 172, 177, 180]
  
  std = np.std(h) 
  mean = np.mean(h)    
  plt.plot(norm.pdf(h,mean,std))
  </code></pre>
  
  <p>output:</p>
  
  <pre><code>Standard Deriviation = 8.54065575872 
  mean = 176.076923077
  </code></pre>
  
  <p>the plot is incorrect, what is wrong with my code?</p>