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Problem 3: Attournamento 0) As a preliminary helper result, show by induction that for events E1, E2,.….., EM, P(E, or E2 or ... or Em) <£ P(Em). (2) m=1 Consider a tournament between N teams, each team playing each of the other teams. 1) How many games will be played in total, in the tournament? We can represent the results of this tournament by a directed graph: node i represents team i, and an edge exists i → j if team i beat team j. 2) Show (by example) there is a tournament that might occur, where every team is beaten by some team. The above problem suggests that it may be impossible to declare an absolute winner, as everyone may be beaten by somebody. We could relax this slightly in the following way: let's call team i a k-winner if there is a group of k-many teams that were each beaten by team i. Other teams may have beaten team i, but there is at least a group of size k that was roundly beaten by i. 3) If the results of each game are decided by fair coin flip, what is the probability that a given team i is a k-winner? 4) Using result 3.0, bound the probability that there exists a k-winner in a tournament of size N? Write it nicely as you can but don't beat yourself up too much with it.

Problem 3: Attournamento 0) As a preliminary helper result, show by induction that for events E1, E2,.….., EM, P(E, or E2 or ... or Em) <£ P(Em). (2) m=1 Consider a tournament between N teams, each team playing each of the other teams. 1) How many games will be played in total, in the tournament? We can represent the results of this tournament by a directed graph: node i represents team i, and an edge exists i → j if team i beat team j. 2) Show (by example) there is a tournament that might occur, where every team is beaten by some team. The above problem suggests that it may be impossible to declare an absolute winner, as everyone may be beaten by somebody. We could relax this slightly in the following way: let's call team i a k-winner if there is a group of k-many teams that were each beaten by team i. Other teams may have beaten team i, but there is at least a group of size k that was roundly beaten by i. 3) If the results of each game are decided by fair coin flip, what is the probability that a given team i is a k-winner? 4) Using result 3.0, bound the probability that there exists a k-winner in a tournament of size N? Write it nicely as you can but don't beat yourself up too much with it.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Problem 3: Attournamento 0) As a preliminary helper result, show by induction that for events E1, E2,..., Em, P(E1 or E2 or .. or EM) < P(Em). (2) m=1 Consider a tournament between N teams, each team playing each of the other teams. 1) How many games will be played in total, in the tournament? We can represent the results of this tournament by a directed graph: node i represents team i, and an edge exists i → j if team i beat team j. 2) Show (by example) there is a tournament that might occur, where every team is beaten by some team. The above problem suggests that it may be impossible to declare an absolute winner, as everyone may be beaten by somebody. We could relax this slightly in the following way: let's call team i a k-winner if there is a group of k-many teams that were each beaten by team i. Other teams may have beaten team i, but there is at least a group of size k that was roundly beaten by i. 3) If the results of each game are decided by fair coin flip, what is the probability that a given team i is a k-winner? 4) Using result 3.0, bound the probability that there exists a k-winner in a tournament of size N? Write it nicely as you can but don't beat yourself up too much with it.
Transcribed Image Text:Problem 3: Attournamento 0) As a preliminary helper result, show by induction that for events E1, E2,..., Em, P(E1 or E2 or .. or EM) < P(Em). (2) m=1 Consider a tournament between N teams, each team playing each of the other teams. 1) How many games will be played in total, in the tournament? We can represent the results of this tournament by a directed graph: node i represents team i, and an edge exists i → j if team i beat team j. 2) Show (by example) there is a tournament that might occur, where every team is beaten by some team. The above problem suggests that it may be impossible to declare an absolute winner, as everyone may be beaten by somebody. We could relax this slightly in the following way: let's call team i a k-winner if there is a group of k-many teams that were each beaten by team i. Other teams may have beaten team i, but there is at least a group of size k that was roundly beaten by i. 3) If the results of each game are decided by fair coin flip, what is the probability that a given team i is a k-winner? 4) Using result 3.0, bound the probability that there exists a k-winner in a tournament of size N? Write it nicely as you can but don't beat yourself up too much with it.
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