user manual

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Chapter 13
Figure 13-34
SamplingWizard,SamplingMethodstep(stage1)
E Select PPS as the sampling method.
E Select Count data records as the measure of size.
E Click Next.
Within each county, townships are d rawn without replacement with probability proportional to the
number of records for each township. Using a PPS method generates joint sampling probabilities
for the townships; you w ill specify where to save these values in the Output Files step.