A box contain 3 identical red balls, 3 identical white balls and 1 black ball. A ball is selected randomly from a bag and then put it in the bag. Aging a ball is drawn. Write the sample space for this experiment.

Answer

`S={R_(1)R_(1),R_(1)R_(2),R_(1)R_(3),R_(1)W_(1),R_(1)W_(2)R_(1)B,R_(2)R_(1),R_(2)R_(2),R_(2)R_(3),R_(2)W_(1),R_(2)W_(2),R_(2)B,R_(3)R_(1),R_(3)R_(2),R_(3)R_(3),R_(3)W_(1),R_(3)W_(2),R_(3)B,W_(1)R_(1),W_(1)R_(3),W_(1)W_(1),W_(1)W_(2),W_(1)B,W_(2)R_(1),W_(2)R_(2),W_(2)R_(3),W_(2)W_(1),W_(2)W_(2),W_(2)B,BR_(1),BR_(2),BR_(3),BW_(1),BW_(2),BB}`