21. A woman has n keys, of which one will open her door. If she tries the...

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21. A woman has n keys, of which one will open her door. If she tries the keys at random, discarding those that do not work, what is the probability that she will open the door on her kth try? What if she does not discard previously tried keys?

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Introduction To Probability And Statistics For Engineers And Scientists

ISBN: 9780125980579

3rd Edition

Authors: Sheldon M. Ross

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Question Posted: Sep 11, 2024 06:01 AM

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21. A woman has n keys, of which one will open her door. If she tries the...

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Introduction To Probability And Statistics For Engineers And Scientists

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