They are usually estimated by statistics computed in samples.
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Subject 1. The Nature of Statistics mple are called statistics.
A parameter is a numerical quantity measuring some aspect of a population of scores.
The mean, for example, is a measure of central tendency. Greek letters are used to designate parameters. <span>Parameters are rarely known and are usually estimated by statistics computed in samples. Populations can have many parameters, but investment analysts are usually only concerned with a few, such as the mean return or the standard deviation of returns.
last interval [days]
repetition number in this series
scheduled repetition interval
last repetition or drill
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