User:Jukeboksi/BBA studies/Researching Target Markets: Difference between revisions
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, 10 March 2014definition of w:standard deviation
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In [[w:statistics|statistics]] and [[w:probability theory]], the '''[[w:standard deviation|standard deviation]]''' (represented by the Greek letter sigma, '''[[w:Sigma|σ]]''') shows how much variation or [[w:statistical dispersion|dispersion]] from the average exists. ( Wikipedia ) | In [[w:statistics|statistics]] and [[w:probability theory]], the '''[[w:standard deviation|standard deviation]]''' (represented by the Greek letter sigma, '''[[w:Sigma|σ]]''') shows how much variation or [[w:statistical dispersion|dispersion]] from the average exists. ( Wikipedia ) | ||
== 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|σ]]''') 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 ) | |||