Or, they could get rid of every coin smaller than a quarter. Assuming every amount of change less than a dollar is equally likely, the average number of coins n

Or, they could get rid of every coin smaller than a quarter. Assuming every amount of change less than a dollar is equally likely, the average number of coins needed to make change now becomes 1.5 - and it's not like anybody really uses anything less than a quarter for anything other than coinstar anyways