Hello Everyone, 
I have a set of financial data on publicly traded firms.  This data is separated into two categories, and one contains about three times the observations.  I am looking for a method to select all of the observations in the larger category that are similar to the smaller category in terms of one attribute, a given firms stock Beta.  Essentially, I am hoping to select a subset of observations from the larger group such that the distribution of this variable is similar for both groups.  
Thank you for any suggestions,
Joshua A. Shindell
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