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Randomization is the process of making something random; in various contexts this involves, for example: * generating a random permutation of a sequence (such as when shuffling cards); * selecting a random sample of a population (important in statistical sampling); * allocating experimental units via random assignment to a treatment or control condition; * generating random numbers (see Random number generation); or * transforming a data stream (such as when using a scrambler in telecommunications). Randomization is ''not'' haphazard. Instead, a random process is a sequence of random variables describing a process whose outcomes do not follow a deterministic pattern, but follow an evolution described by probability distributions. For example, a random sample of individuals from a population refers to a sample where every individual has a known probability of being sampled. This would be contrasted with nonprobability sampling where arbitrary individuals are selected. ==Applications== (詳細はウィキペディア（Wikipedia）』 ■ウィキペディアで「randomization」の詳細全文を読む スポンサード リンク
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