An ATM personal identification number (PIN) consists of a four-digit sequence. (a) How many different possible PINs are there if there are no restrictions on the possible choice of digits? (b) According to a representative at the authors' local branch of Chase Bank, there are in fact restrictions on the choice of digits. The following choices are prohibited: (1) all four digits identical; ( 2) sequences of consecutive ascending or descending digits, such as 6543 ; (3) any sequence starting with

Answered: An ATM personal identification number (PIN) consists of four digits, each a 0, 1, 2,… 8, or 9, in succession.a. How many different possible PINs are there if… | bartleby