title: Iterating over an array by range
body: <p>I have an array: <code>[1, 2, 3, 4, 5, 6...100]</code></p>
  
  <p>I am looking to iterate over this array by 5, specifically: </p>
  
  <p>Take the first 5 numbers of the array and get the average, move on to the next 5 numbers and get the average, and so on..</p>
  
  <p>I have tried numerous methods such as a <code>Dequeue</code> and for loops but have not been able to get the outcome desired.</p>