Selecting Samples
Survey samples can be broadly divided into two types: probability samples and non-probability samples. Stratified sampling is a method of probability sampling such that sub-populations within an overall population are identified and included in the sample selected in a balanced way.
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Famous quotes containing the words selecting and/or samples:
“But compared with the task of selecting a piece of French pastry held by an impatient waiter a move in chess is like reaching for a salary check in its demand on the contemplative faculties.”
—Robert Benchley (1889–1945)
“Good government cannot be found on the bargain-counter. We have seen samples of bargain-counter government in the past when low tax rates were secured by increasing the bonded debt for current expenses or refusing to keep our institutions up to the standard in repairs, extensions, equipment, and accommodations. I refuse, and the Republican Party refuses, to endorse that method of sham and shoddy economy.”
—Calvin Coolidge (1872–1933)