Tuesday, March 12, 2013

HuffPo logical fallacies

xkcd Comics

Causation vs. Correlation:
"Costco reported a profit of $537 million last quarter, up from $394 million during the same period last year, according to the Wall Street Journal. The healthy earnings report comes just six days after Jelinik urged lawmakers to raise the minimum wage to $10.10 an hour."

One year of profit reports as opposed to six days following a comment.

Straw Man Fallacy
"Costco makes more than $10,000 in profits per employee, while Walmart takes home about $7,400 per worker, according to the Daily Beast (Walmart and Costco aren’t exactly the same type of business, however)."

Costco (X) makes Profit (a). Walmart (Y) makes Profit (b)

You propose X:Y::a:b, but that is not remotely true.

If X /= Y therefore you cannot make assumption of a=b


Read the Article at HuffingtonPost

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