s does not imply that they have more of “biological sex”. And if we calculate an average of these numbers for a group of people, it might be 1.67. But a statement like “the average biological sex in this group was 1.67” is pretty meaningless.</p>
<p>There are four scales of measurement:</p>
<ul>
<li>A <strong>nominal scale</strong> allows identifying values as “identical” or “different”, but nothing more. Examples of variables on a nominal scale are pizza toppings, eye colour, etc. While we 