Outside a home there is a keypad that will open the garage if the correct four-digit code

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Outside a home there is a keypad that will open the garage if the correct four-digit code is entered.
(a) How many codes are possible?
(b) What is the probability of entering the correct code on the first try, assuming that the owner doesn’t remember the code?
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Fundamentals Of Statistics

ISBN: 9780321844606

4th Edition

Authors: Michael Sullivan III

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