a) Banks only accept coins for deposit if they are rolled in specified amounts. Pennies, for ex, are to be in rolls of 50. A Canadian bank has checked the 200 rolls of pennies they have on hand. Only 12 of the rolls contained all Canadian pennies: the rest all had at least one American penny. Altogether in the 200 rolls, about how many American pennies are there?
b) What is the median number of American pennies in a roll?