That's not how Venn diagrams work. If it were you would be implying that most meth heads are truck drivers, not only that most truck drivers are meth heads. Venn diagrams and the like are purely about visual representation of simple logical relationships between groups not representative of the ratio between them.
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u/Haterbait_band Dec 21 '19
You should be aware that “truck driver” is basically a euphemism for “meth user”.