A-acceptable
R-repairable
S-scrapped
So the possible outcomes for two parts are, 3 * 3 = 9
AA for (acceptable , acceptable)
AR for (acceptable, repairable)
AS for (acceptable, scrapped)
RA for (repairable, acceptable)
RR for (repairable, repairable)
RS for (repairable, scrapped)
SA for (scrapped, acceptable)
SR for (scrapped, repairable)
SS for (scrapped, scrapped)