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Please sign and share the petition 'Tighten regulation on taking, making and faking explicit images' at Change.org initiated by Helen Mort to the w:Law Commission (England and Wales) to properly update UK laws against synthetic filth. Only name and email required to support, no nationality requirement. See Current and possible laws and their application @ #SSF! wiki for more info on the struggle for laws to protect humans.

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Researching Target Markets: Difference between revisions

(→‎Week 12: adding stuff from w:Nonprobability sampling and definition of probability sampling or w:random sampling)
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:::'''Probability sampling''', or '''[[w:random sampling|random sampling]]''', is a sampling technique in which  the [[w:probability|probability]] of getting any particular sample may be calculated.   
:::'''Probability sampling''', or '''[[w:random sampling|random sampling]]''', is a sampling technique in which  the [[w:probability|probability]] of getting any particular sample may be calculated.   
:::'''Nonprobability sampling''' does not meet this criterion and should be used with caution. Nonprobability sampling techniques ''cannot'' be used to infer from the sample to the general population. ( Wikipedia )
:::'''Nonprobability sampling''' does not meet this criterion and should be used with caution. Nonprobability sampling techniques ''cannot'' be used to infer from the sample to the general population. ( Wikipedia )
* '''[[w:Systematic sampling|Systematic sampling]]''' is a [[statistics|statistical method]] involving the selection of elements from an ordered [[sampling frame]]. ( Wikipedia )


= Statistical Methods =
= Statistical Methods =
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