The number of times the dice have to be rolled to halve the original number of dice in the tray represents the half-life.
Figure 7 shows an eight-sided dice and a six-sided dice.

The student now used eight-sided dice to model radioactive decay. Dice that landed
on the number six were again removed from the tray.
The half-life represented by rolling eight-sided dice is likely to be different from the
half-life represented by rolling six-sided dice.
Explain how
[2 marks]