title: how to randomly select a list with a nested list
body: <p>Perhaps this a simple question with using list comprehension.  How do you randomly select an entire list from a nested list?  The randomly selected list should be in the same order it is in within the nested list.</p>
  
  <p>[['10','32','66'], ['78','501','23'], ['15','48', '698']]</p>
  
  <p>Say the random selection gave me the second list in the nested list: ['78', '501', '23']</p>
  
  <p>Thanks for any help...newbie.</p>