I'm having a problem coming up with the CR for a goblin with advanced class levels. Namely: Rog1/Ftr5, Rog2/Ftr6, Rog3/Ftr7, Rog4/Ftr8, Rog4/Ftr2, Rog5/Fr4, Rog7/Ftr5.
Also, if you could explain how exactly you come up with the CR for a goblin. I know adding associated class levels adds +1 CR per level, and nonassociated adds +1/2 CR per level. I figured Rogue was an associated class, and Fighter a nonassociated. However, the Goblin as a standard race starts at 1/3 CR. Adding this up for a Rog1/Ftr5 gives me: 1/3 base +1 Rogue +2 1/2 Fighter= 3 5/6, or rounded up to 4. Is this correct?
Also, if you could explain how exactly you come up with the CR for a goblin. I know adding associated class levels adds +1 CR per level, and nonassociated adds +1/2 CR per level. I figured Rogue was an associated class, and Fighter a nonassociated. However, the Goblin as a standard race starts at 1/3 CR. Adding this up for a Rog1/Ftr5 gives me: 1/3 base +1 Rogue +2 1/2 Fighter= 3 5/6, or rounded up to 4. Is this correct?