If you specify the option METHOD=SEQ and do not include a SIZE statement, PROC SURVEYSELECT uses the equal probability version of Chromy's method for sequential random sampling. This method selects ...
PROC SURVEYSELECT provides a variety of methods for selecting probability-based random samples. With probability sampling, each unit in the survey population has a known, positive probablity of ...
Recent U.S. Environmental Protection Agency testing of 10 St. Croix homes and the Claude O. Markoe Elementary School showed lower levels of lead and copper than previously indicated. The “sequential ...
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