A sheet of silicon contains 100 microprocessors all of which are the same size and type. The production process generates 20 imperfections on each sheet.
1) What is the probability that a microprocessor will have 0 imperfections?
2) What is the probability that a microprocessor will have more than 2 imperfections?
3) Out of the 100 microprocessors on the sheet, how many would you expect to have more than 2 imperfections?