title: Can I calculate the average of these numbers?
body: <p>I was wondering if it's possible to calculate the average of some numbers if I have this:</p>
  
  <pre><code>int currentCount = 12;
  float currentScore = 6.1123   (this is a range of 1 &lt;-&gt; 10).
  </code></pre>
  
  <p>Now, if I receive another score (let's say 4.5), can I recalculate the average so it would be something like:</p>
  
  <pre><code>int currentCount now equals 13
  float currentScore now equals ?????
  </code></pre>
  
  <p>or is this impossible and I still need to remember the list of scores?</p>