Originally Posted by haganah
I'm not so sure I agree with that stereotype. They may be skinny, geeky and have zit cream all over their weezer shirts, but they're usually lanky and tall.
Jews probably tend to be slim, when young. Height - maybe a bit shorter than average. The stereotype that Jews are quite short probably stems from their once living undernourished in Europe.
Edit: rxcats was first, with facts.
By the way, since it wasn't clear, reasonably accurate height predictions are made at a few years of age, not in infancy.