# Question

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?

(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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