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Random Number Book
A random number book is a book whose main content is a large number of random numbers or random digits. Such books were used in early cryptography and experimental design, and were published by the Rand Corporation and others. The Rand corporation book ''A Million Random Digits with 100,000 Normal Deviates'' was first published in 1955 and was reissued in 2001. A sequel, '' A Million And One Random Digits'' was published in 2022. Random number books have been rendered obsolete for most purposes by the ready availability of random number generators running on electronic computers. However they still have niche uses, particularly in the performance of experimental music pieces that call for them, such as ''Vision'' (1959) and ''Poem'' (1960) by La Monte Young. See also * One-time pad * Random number table Random number tables have been used in statistics for tasks such as selected randomness, random samples. This was much more effective than manually selecting the random sample ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Random Digits
In common usage, randomness is the apparent or actual lack of pattern or predictability in events. A random sequence of events, symbols or steps often has no order and does not follow an intelligible pattern or combination. Individual random events are, by definition, unpredictable, but if the probability distribution is known, the frequency of different outcomes over repeated events (or "trials") is predictable.Strictly speaking, the frequency of an outcome will converge almost surely to a predictable value as the number of trials becomes arbitrarily large. Non-convergence or convergence to a different value is possible, but has probability zero. For example, when throwing two dice, the outcome of any particular roll is unpredictable, but a sum of 7 will tend to occur twice as often as 4. In this view, randomness is not haphazardness; it is a measure of uncertainty of an outcome. Randomness applies to concepts of chance, probability, and information entropy. The fields ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
