Analysis of information sources in references of the Wikipedia article "Glossary of basketball terms" in English language version.
{{cite book}}: CS1 maint: multiple names: authors list (link)The point is that every missed shot has to have a rebound. And to be able to balance the box score, there needs to be a rebound for every miss. That way you know the box score adds up. It's kind of like a geometry proof, where the left side has to equal the right side.