A woman has n keys, of which one will openher door.(a) If
Chapter 2, Problem 45(choose chapter or problem)
A woman has n keys, of which one will openher door.(a) If she tries the keys at random, discardingthose that do not work, what is the probabilitythat she will open the door on her kth try?(b) What if she does not discard previously triedkeys?
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