You cannot remember your 5digit bikelock combination What is

You cannot remember your 5-digit bike-lock combination. What is the probability that you guess the combination correctly?

We know that the probability of an event is (possible outcome/total outcome)

I will assume that repeats are allowed as in most combination locks so number of possible codes

= 10⁵ = 100000

We also know that there is only one correct combination so the probability that you guess the combination correctly

= 1/10⁵ = 1/100000 = 0.00001