70 women in the US die of anorexia each year, so the correct answer to the question in my previous post is A).

In order to have guessed at this question correctly, you probably would've had to approach this as an interview question and break it down in the following way:

1) How many women live in the US?
About 140 million.

2) What percent of women in the US have anorexia?
About .1%. Remember, this is not just teenage women; this includes babies, adults, and the elderly.

3) What percent of women who have anorexia die from it?
About .05%

Of course, if you're off on any of those calculations, you're still gonna get it wrong.

This is lesson 21B about statistics--
People generally have a hard time with population totals and subsets.

So when a journal accidentally wrote that 150,000 women die from anorexia each year, did anyone give it a second thought?

No, it seemed pretty reasonable. But actually, there are only 150,000 women who have anorexia each year.