Marketing to Single Women

After reading an article about single women, it appears that marketers have a tough time catorgorizing single women. Marketing executives sterotype single women as less educated, more adventursome and richer than married women. I find it funny that marketers are so off on how to target single women. This article made you see that they have no idea about this specific audience.
The author who wrote this article, Adreienne W Fawcett compares information from a draft FCB survey of 500 advertising and marketing professionals in the US to recent statistics. For example, marketers felt that 48% of single women have attended college while in reality after doing research it is 53%. Marketers were off on so many of the percentages. They really need to learn more about this audience by doing more surveys and etc. Marketers need to take more time in learning about single women instead of just comparing them to married women. A quote i really enjoyed from the article was, "Sterotyping single women as lonely spinsters is like comparing the internet to a card-catolog from the library".

What it comes down too is, where do these marketers get their statistics and is it all wrong?