A hacker is trying to guess someone s password The hacker knows somehow that the password is 10 characters long and that each

Question

A hacker is trying to guess someone s password The hacker knows somehow that the password is 10 characters long and that each character is either a lowercase letter a b c etc an uppercase letter A B C etc or a numerical digit 0 1 2 3 4 5 6 7 8 or 9 Assume that the hacker makes random guesses What is the probability that the hacker guesses the password on his first try Enter your answer as a decimal or a fraction not a percentage

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