<https://aspfriends.com/the-strength-of-the-relationship-between-two-quantitative-variables-can-be-measured-by/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://aspfriends.com/the-strength-of-the-relationship-between-two-quantitative-variables-can-be-measured-by/>