Mathematics, 05.07.2021 06:50 lemoinedegraw
A computer system uses passwords that consist of 4 letters followed by an even digit.
(a) How many passwords are possible? Write S.
(b) How many passwords consist of 3X’s and Y’s and end in a single digit? Write S.
(c) If any forget password but remember that it has the characteristics described in part (b) what is the chance that one will guess the password correctly on the first attempt?
Answers: 3
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A computer system uses passwords that consist of 4 letters followed by an even digit.
(a) How many...
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