Question: An automatic teller machine requires that each customer enter a 4-digit personal identification number (PIN) when he or she inserts a bank card. If a

An automatic teller machine requires that each customer enter a 4-digit personal identification number (PIN) when he or she inserts a bank card. If a person finds a bank card and guesses at a PIN to use the card fraudulently, what is the probability that the person will succeed in one attempt? (Enter your probability as a fraction.)

(b) If the person knows that the PIN will not have any digit repeated, what is the probability the person will succeed in guessing in one attempt? (Enter your probability as a fraction.)

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