Mathematics, 16.09.2021 21:00 NLMB7633

A passcode to enter a building is a sequence of 4, single digit numbers (0,9) and repeated digits aren't allowed. Suppose someone doesn't know the passcode and randomly guesses a sequence of 4 digits. What is the probability that they guess the correct sequence?

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A passcode to enter a building is a sequence of 4, single digit numbers (0,9) and repeated digits ar...