title: Generate random float numbers in a range with sigma in python
body: <p>Is there any method to generate non-repeated float random numbers in a range with given size and standard deviation?</p>
  
  <p>I generate e.g. 1000 random floats between a min and max value:</p>
  
  <pre><code>randSize= 1000
  randValues = np.random.uniform(low=myMinVal, high=myMaxVal, size (randSize,))
  </code></pre>
  
  <p>But I want to generate only numbers, which have less than 0.2 SD in that range</p>