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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | Re: GISList: Census Data Questions |
| Date: |
12/26/2001 10:48:17 AM |
| From: |
Paul H.Dillon |
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----- Original Message -----
From: Kahn, Helen <HKahn@VHB.com>
To: <gislist@geocomm.com>
Sent: Wednesday, December 26, 2001 8:18 AM
Subject: GISList: Census Data Questions
> Hi All -
> this is not a strict GIS question, but I figure someone out there working
> with census data can answer my queries.
>
> Question 1: Is it possible to have blocks with zero (0) population?
Yes.
> Question 2: Why do population by race/ethnic origin percentages total less
> than, or greater than 100%? Is this an issue of rounding? Or does it
have
> to do with people identifying themselves as more than one category, i.e.,
> Black & Hispanic Origin?
Hispanic is not a race for the census it is descent (you could also think
about as a culture?). You can have white, black, asian, etc. people of
hispanic descent. You have to work with these and distinguish.
Paul H. Dillon
Eureka, CA
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