standard deviation is not tolerance
if you want two equal valued, matched resistors, you need to buy them that way
if you want two resistors to provide a specific voltage division you need to buy them that way
we did that for many projects using Caddock resistor
they make high quality resistors to very tight tolerances
they can track over temperature.
if you need two identical resistors (value, tolerance, temp coefficient, etc) this is the place to get them
http://www.caddock.com/