Your mother is out of toothpicks and suggest you use cotton swabs instead you measure them and they are 7.6 cm tall how many cotton swabs tall will your model be

Tom says that he needs 6 rolls to obtain each possible outcome on a 6-sided die. on the fourth roll, he rolls his second "3”. tom says that the die is loaded and that each outcome is not equally likely. is tom correct here? if you think tom is incorrect, how many rolls should tom make until he sees each number occurring about 1/6 of the time?