Changing Landscapes: Recent Immigrants Living in York Region

who were in Canada on temporary visas might have
become permanent residents. In short, the Census
is not a longitudinal study, where the same group of
immigrants is being tracked over a period of time.
Random Rounding and Data Suppression
Data in this report do not always agree from one
chart to another or add up to 100 per cent in
some places due to Statistics Canada’s random
rounding practice. This practice is done to protect
the possibility of associating statistical data with
any identifiable individual. Under this method, all
figures, including totals and margins, are randomly
rounded either up or down to a multiple of ‘5’,
and in some cases ‘10’. Totals and margins are
rounded independently of the cell data so that
some differences between these and the sum of
rounded cell data may exist. Percentages, which are
calculated on rounded figures, do not necessarily
add up to 100 per cent. Minor differences can be
expected in corresponding totals and cell values
among various census tabulations. It should also be
noted that small cell counts may suffer a significant
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Changing Landscapes: Recent Immigrants Living in York Region
distortion as a result of random rounding. Individual
data cells containing small numbers may lose their
precision as a result. Also, a statistic is suppressed if
the number of actual records used in the calculation
is less than 4 or if the sum of the weight of these
records is less than 10. More information available
on Statistics Canada’s website:
http://www12.statcan.ca/censusrecensement/2006/ref/dict/index-eng.cfm