Changing a spoke on a rear wheel is it easy enough to change a spoke on a rear wheel? It is not on the side of the chain ring.
Thanks 

Ian
Depends - you will probably need to remove the cassette/freewheel anyway, to get enough room to get the spoke in even though its the non-drive side.  I've replaced one by bending the spoke horribly to get it through the hub, and while it worked was not a good technique.

You will need a spoke key for tensioning - an adjustable spanner may work but its asking for rounded-off nipples.  Or you can remove the tube and tyre and maybe tension it with a flat screwdriver.

If you don't feel confident, its safest to get a bike shop to do it.  They will only need the wheel, not the whole bike.  You'll need to buy a new spoke of the right length too, the LBS can measure your old one.