ritahasa ritahasa
  • 23-02-2024
  • Social Studies
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After selecting a 25% sample of a larg public assistance agency’s caseload, a researches finds that there are no cases in which drug or alcohol abuse were identified. She concludes that the sample is: 1- a valid sample, 2- a modal sample, 3- not e representative sample, 4- a reliable sample.

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