Tatiana observes that all of her friends who have more than five tattoos also have more than five body piercings, and concludes that getting multiple tattoos makes people also get multiple piercings. Tatiana is

Question

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Tatiana is observing a correlation (a relationship) between having more than five tattoos and having more than five body piercings but is mistakenly inferring that one causes the other without evidence for a causal link, which is a common error known as confusing correlation with causation.

Tatiana Observes That All of Her Friends Who Have More