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Podcasting Terms: Glossary - Reference from

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AAC (Advanced Audio Coding)

AAC is a proprietary audio file format from Apple that is only playable by Apple software and hardware. See Apple's Web site for more information.


An RSS aggregator program used to collect and...

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What is long tail? - Definition from

The long tail is a frequency distribution pattern in which occurences are most densely clustered close to the Y-axis and the distribution curve tapers along the X-axis. The long tail refers to the low-frequency population displayed in the right-hand portion of the graph, represented by a gradually sloping distribution curve that becomes asymptotic to the x-axis. In most applications, the number of events in the tail is greater than the number of events in the high frequency area,...

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Related topics : wired magazine chris anderson long tail / the long tail why the future of business is selling less of more by chris anderson / chris anderson wired long tail article / the long tail why the future of business is selling less of more (2006) / chris anderson the long tail wired

What is skewness? - Definition from

Skewness is asymmetry in a statistical distribution, in which the curve appears distorted or skewed either to the left or to the right. Skewness can be quantified to define the extent to which a distribution differs from a normal distribution.

In a normal distribution, the graph appears as a classical, symmetrical "bell-shaped curve." The mean , or average, and...

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Related topics : normal distribution right tail