(Language PHP - This question is for any language, particularly I'm using PHP)
For example you have an array of numbers like:

```
$q = array( 1, 2, 3, 4, 5, ... ); // ... mean you can give more numbers
$i = 0;
$currentAverage = 0;
while ($i < count( $q )) {
    $currentAverage = ($currentAverage + $q[$i]) / 2;  // this is my try
    $i++;
}

echo "The final average is: " . $currentAverage . "<br/>";

```

Obviusly, you can divide by `count( $q )` the sum, but that's not the idea. 

I hope you can help me! thanks.