title: Add numbers together from arraylist
body: <p>I am making an application that will give me the Mean, Medium and Range of the numbers that have been inserted by the user.<br>
  But I cannot seem to add the numbers and then divide them by two.<br>
  Here's what I attempted:  </p>
  
  <pre><code>    public static String Find_Mean()
      {
          int Number = 0;
          for (int size = 0; size &lt; list.Count; size++)
          {
              Number = Convert.ToInt16(list[size].ToString());
              Number += Number;
          }
          int Final_Number = Number / 2;
          return Convert.ToString(Final_Number);
      }
  </code></pre>
  
  <p>What I want to do is add all the numbers together from the arraylist then divide them by 2.</p>