Assignment:
A computer system uses passwords constructed from the 26 letters (a-z) or 10 integers (0-9). Suppose that 10,000 users of the system have unique passwords. A hacker randomly selects (with replacement) passwords from the potential set.
- Suppose that 9900 users have unique six-character passwords and the hacker randomly selects six-character passwords. What are the mean and standard deviation of the number of attempts before the hacker selects a user password?
- Suppose that 100 users have unique three-character passwords and the hacker randomly selects three-character passwords.
Your answer must be typed, double-spaced, Times New Roman font (size 12), one-inch margins on all sides, APA format and also include references.