(24) Consider an experiment where we collect N = 106 molecules of a gas in closed...
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(24) Consider an experiment where we collect N = 106 molecules of a gas in closed container. The probability a gas molecule is on the left or right side of the container is modeled by a Bernoulli random variable. Thus for N Bernoulli trials the expectation of the number of molecules on the right is N/2 with variance N/4. Use the problem (22), and the CLT, to find a bound for the probability that the number of molecules on the right fluctuate by more than 0.5%. In other words, find a bound for P(|XN/2) > 0.005N). This demonstrates, with no further assumptions, that there is a finite and calculable probability that all the air in a room would rush to one side only. Let's just hope we're on the right side! (24) Consider an experiment where we collect N = 106 molecules of a gas in closed container. The probability a gas molecule is on the left or right side of the container is modeled by a Bernoulli random variable. Thus for N Bernoulli trials the expectation of the number of molecules on the right is N/2 with variance N/4. Use the problem (22), and the CLT, to find a bound for the probability that the number of molecules on the right fluctuate by more than 0.5%. In other words, find a bound for P(|XN/2) > 0.005N). This demonstrates, with no further assumptions, that there is a finite and calculable probability that all the air in a room would rush to one side only. Let's just hope we're on the right side!
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Related Book For
Fundamentals of Cost Accounting
ISBN: 978-0077398194
3rd Edition
Authors: William Lanen, Shannon Anderson, Michael Maher
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