| Skewed columns [message #172009] |
Sat, 13 May 2006 02:06  |
gajini
Messages: 262
Registered: January 2006
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Senior Member |
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In creating histograms,i read a term called "skewed data columns",Can anyone explain me what does it mean in detail with an example?
Thanks,
Gajini
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| Re: Skewed columns [message #172039 is a reply to message #172009] |
Sat, 13 May 2006 08:30  |
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BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal
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Senior Member |
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In a table of PERSONNEL the gender column would contain non-skewed data.
In an INVOICE table the PAID_UNPAID column would contain skewed data because most of the invoices would have already have been paid.
For accounting purposes many years of transaction history must be kept online.
Skewed data is the opposite or normally distributed data.
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