title: Create random numbers with left skewed probability distribution
body: <p>I would like to pick a number randomly between 1-100 such that the probability of getting numbers 60-100 is higher than 1-59. </p>
  
  <p>I would like to have the probability to be a left-skewed distribution for numbers 1-100. That is to say, it has a long tail and a peak. </p>
  
  <p>Something along the lines: </p>
  
  <pre><code>pers = np.arange(1,101,1)
  prob = &lt;left-skewed distribution&gt;
  number = np.random.choice(pers, 1, p=prob)
  </code></pre>
  
  <p>I do not know how to generate a left-skewed discrete probability function. Any ideas? Thanks!</p>