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A hacker is trying to guess someone's password. The hacker knows (somehow) that the password is 4 digits long,
and that each digit could be a number between 0 and 3 .
Assume that the hacker makes random guesses. What is the probability that the hacker guesses the password on her first try?
Round to six decimal places.
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There are different codes of 4 digits long with the digits from 0 to 3 inclusive.
They are equally likely and only one of these codes works.
So the probability under the question is = = 0.003906 (rounded to six decimal places). ANSWER
Solved.