How good are RHP players?

A prior thread confirmed that 1200 was average by design, but what does that mean? The average would still be 1200 if RHP had all the world's worst players. On the other hand, the world's very worst players probably do not have ratings because they do not play.

Does anyone know if average offical rating also is 1200 by design?
Can anyone with an official rating compare it to their RHP rating?