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User:Jukeboksi/BBA studies/Researching Target Markets
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== Later weeks == *In [[w:statistics|statistics]] and [[w:probability theory|probability theory]], the '''[[w:standard deviation|standard deviation]]''' ('''SD''') (represented by the Greek letter sigma, '''[[w:Sigma|Ο]]''') shows how much variation or [[w:tatistical dispersion|dispersion]] from the average exists. :::A low standard deviation indicates that the data points tend to be very close to the [[w:mean|mean]] (also called expected value); a high standard deviation indicates that the data points are spread out over a large range of values. ( Wikipedia ) * The '''[[w:coefficient of variation|coefficient of variation]]''' ('''CV''') is a [[w:normalization (statistics)|normalized]] measure of [[w:statistical dispersion|dispersion]] of a [[w:probability distribution|probability distribution]] or [[w:frequency distribution|frequency distribution]]. ( Wikipedia ) * A '''[[w:histogram|histogram]]''' is a graphical representation of the distribution of data. It is an estimate of the [[w:probability distribution|probability distribution]] of a [[w:continuous variable|continuous variable]] and was first introduced by [[w:Karl Pearson|Karl Pearson]]. ( Wikipedia )
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