salman.psycho
Please ask questions only one time. Thank you.
2 Answers
Clonge
Best answer!
ROMOS
By the law of averages???????????
| 10 years ago. Rating: 3 | |
Below reply moved to where it belongs
________________________
salman.psycho
what is "law of averages"?
________________________
salman.psychowhat is "law of averages"?
Law of averages
From Wikipedia, the free encyclopedia
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (February 2009)
The law of averages is a layman's term used to express a belief that outcomes of a random event will "even out" within a small sample.
As invoked in everyday life, the "law" usually reflects bad statistics or wishful thinking rather than any mathematical principle. While there is a real theorem that a random variable will reflect its underlying probability over a very large sample, the law of averages typically assumes that unnatural short-term "balance" must occur.[1] Typical applications of the law also generally assume no bias in the underlying probability distribution, which is frequently at odds with the empirical evidence.[citation needed]
Examples[edit]
Belief that an event is "due" to happen: For example, "The roulette wheel has landed on red in three consecutive spins. The law of averages says it's due to land on black!" Of course, the wheel has no memory and its probabilities do not change according to past results. So even if the wheel has landed on red in ten consecutive spins, the probability that the next spin will be black is still 48.6% (assuming a fair European wheel with only one green zero: it would be exactly 50% if there were no green zero and the wheel were fair, and 47.4% for a fair American wheel with one green "0" and one green "00"). Similarly, there is no statistical basis for the belief that lottery numbers which haven't appeared recently are due to appear soon. This sort of belief is called the gambler's fallacy.[citation needed]
Belief that a sample's average must equal its expected value. For example, if one flips a fair coin 100 times, there is only an 8% chance that there will be exactly 50 heads.
Belief that a rare occurrence will happen given enough time. For example, "If I send my résumé to enough places, the law of averages says that someone will eventually hire me." This may actually be true assuming nonzero probabilities and that the number of trials is really large enough; the law of averages is then simply the Law of large numbers.[citation needed]
See also[edit]
Law of large numbers
Gambler's fallacy
References[edit]
Jump up ^ Rees, D.G. (2001) Essential Statistics, 4th edition, Chapman & Hall/CRC. ISBN 1-58488-007-4 (p.48)
Categories: AdagesLaymen and statisticsStatistical lawsProbability fallacies
Navigation menu
From Wikipedia, the free encyclopedia
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (February 2009)
The law of averages is a layman's term used to express a belief that outcomes of a random event will "even out" within a small sample.
As invoked in everyday life, the "law" usually reflects bad statistics or wishful thinking rather than any mathematical principle. While there is a real theorem that a random variable will reflect its underlying probability over a very large sample, the law of averages typically assumes that unnatural short-term "balance" must occur.[1] Typical applications of the law also generally assume no bias in the underlying probability distribution, which is frequently at odds with the empirical evidence.[citation needed]
Examples[edit]
Belief that an event is "due" to happen: For example, "The roulette wheel has landed on red in three consecutive spins. The law of averages says it's due to land on black!" Of course, the wheel has no memory and its probabilities do not change according to past results. So even if the wheel has landed on red in ten consecutive spins, the probability that the next spin will be black is still 48.6% (assuming a fair European wheel with only one green zero: it would be exactly 50% if there were no green zero and the wheel were fair, and 47.4% for a fair American wheel with one green "0" and one green "00"). Similarly, there is no statistical basis for the belief that lottery numbers which haven't appeared recently are due to appear soon. This sort of belief is called the gambler's fallacy.[citation needed]
Belief that a sample's average must equal its expected value. For example, if one flips a fair coin 100 times, there is only an 8% chance that there will be exactly 50 heads.
Belief that a rare occurrence will happen given enough time. For example, "If I send my résumé to enough places, the law of averages says that someone will eventually hire me." This may actually be true assuming nonzero probabilities and that the number of trials is really large enough; the law of averages is then simply the Law of large numbers.[citation needed]
See also[edit]
Law of large numbers
Gambler's fallacy
References[edit]
Jump up ^ Rees, D.G. (2001) Essential Statistics, 4th edition, Chapman & Hall/CRC. ISBN 1-58488-007-4 (p.48)
Categories: AdagesLaymen and statisticsStatistical lawsProbability fallacies
Navigation menu
ROMOS - seriously - Oh my - I do not understand? You must have been checked prior to admission and elective surgery?
ROMOS - Did you know George Washington was born the same day as you were - Hey How about that HUH.
ROMOS - I knew I shouldn't have told you that - The head cannot get any larger so here goes Frederic Chopin, Edward Kennedy, Heinrich Engelhard Steinweg(German founder of Steinway and Sons) and of course more.OK do not tell me why you are not prostrate in that hospital bed holding onto your prostate.
Oh boy this laptop is so playing up - this site being so slow at the moment. -
Oh boy this laptop is so playing up - this site being so slow at the moment. -
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