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Event.
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An event is a subset of outcome space. an event determined by a random variable is an event of the form a=(x is in a). when the random variable x is observed, that determines whether or not a occurs: if the value of x happens to be in a, a occurs; if not,
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Determined, английский
- A предопределённый
- Определенный
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Certain event., английский
An event is certain if its probability is 100%. even if an event is certain, it might not occur. however, by the complement rule, the chance that it does not occur is 0%.
Estimator., английский
An estimator is a rule for "guessing" the value of a population parameter based on a random sample from the population. an estimator is a random variable, because its value depends on which particular sample is obtained, which is random. a canon
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