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Q:
When creating tables and charts I occasionally see counties
with "no data." What’s going on? Is
this an error?
A: You may occasionally see counties with “no
data” which is a valid value. This generally,
but not necessarily occurs in sparsely populated areas.
For example, there are "no data" for the
Hispanic population change rate, 1990-2000 for two counties
in Montana, Garfield and Petroleum. Both these counties
reported no Hispanics in 1990. Thus, we could not compute
the rate of change.
Q: How do I produce a map showing a rural indicator
without showing a demographic variable?
A: In step 1 select the U.S. or the State you
would like to map. In step 2 click the map radio button.
In step 3 select the rural indicator you want to map
and ignore the topic of interest and demographic variable
pull down menu. Once you select a rural indicator, the
topic of interest and demographic variables are “turned
off” and are not selectable.
Q: How are the map legends created?
A: Legends for the variables are broken into five classes
to provide ease in analyzing spatial patterns inherent in each data
set by using a graduated color scheme. A quantile classification method is used to break the data
points into the five classes. The high and low values in each class
represent the value at which the data are broken into a class of higher or lower
data points, and do not necessarily represent a particular data point. The rural indicators are
nominal data, and therefore are not broken into classes.
Q: I noticed the only indicator on population change by race/ethnicity in Profiles of America is for Hispanics. Is this indicator available for the various racial groups?
A: The data on race in Census 2000 are not directly comparable with data collected in previous censuses. This is because respondents in 2000 were given the option to report more than one race. More information on this issue can be found on the Census Bureau's website.
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