Re: "data is skewed" - what does it mean ?

Oh...

Thank U Mark.

got it now.

...now i can explain it to someone who doesn't know.

Cheers.

 Mark Richard <mrichard_at_transurban.com.au>:
> It's not this simple...
> Let's take your low cardinality example... Gender is a good
example since
> there are only two (common) genders - male and female.
> A table with 10,000 staff would make the gender column low
cardinaility -
> only 2 distinct values. If you had 5,000 males and 5,000
females then the
> data would be evenly distributed and therefore not skewed. If,
however,
> you had 9,500 females and 500 males then you have skewed data.
> Hopefully this gives some idea of the difference between
cardinality and Received on Fri Jul 25 2003 - 03:12:34 CDT