Where to live? Each year, Forbes magazine ranks the 150 largest metropolitan areas in the United States in an article on the best places for business. Second place in 2007 went to Provo, Utah. Provo was ranked 27th in 2006 and 15th in 2005. TheWashington, DC–northern Virginia metropolitan area ranked 4th in 2005, 17th in 2006, and 37th in 2007. Are these facts evidence that Forbes’s ratings are invalid, biased, or unreliable? Explain your choice.

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