ets say you are going up a building with an infinite number of floors. Independantly of all other floors, there is a probability of 1/5 that each floor has a treasure chest. If you start from the first floor what is the expected number of floors without a treasure chest before you first encounter one?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Lets say you are going up a building with an infinite number of floors. Independantly of all other floors, there is a probability of 1/5 that each floor has a treasure chest. If you start from the first floor what is the expected number of floors without a treasure chest before you first encounter one?

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