title: Using matplotlib how could I plot a histogram with given data in python
body: <p>here is the data:  </p>
  
  <pre><code>111, 3  
  122, 4  
  155, 3  
  192, 5  
  11,  9  
  123, 10  
  120, 23
  </code></pre>
  
  <p>now how could I able to plot a histogram using this two set of data in <code>matplotlib</code>.
  please help.</p>