Question
Make sure that you state your answer in a way that does not lose precision. Show all digits. a.The Personal Identification Number (PIN) for your
Make sure that you state your answer in a way that does not lose precision. Show all digits.
a.The Personal Identification Number (PIN) for your ATM card is four places long. Any number is permitted in each place.How many possible values of a PIN are there?
b.Your bank has decided to allow English alphabetic characters (upper and lower case are permitted) as well as any numeric digit in your PIN.How many possible PINs are there when that change is made?
c. In addition to b. above, your bank has decided to require that the first place of the PIN be a English lower case alphabetic character. How many possible PINs are there when that additional change is made?
d. In addition to b. and c. above, your bank has changed the PIN size to five places. The new digit can have numeric or English alphabetic characters (upper and lower case are permitted).How many possible PINs are there when that change is made?
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