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Phrases with «stratified sample»

A stratified sample is a subset of a larger group that is divided into smaller, distinctive groups called strata. Each stratum represents a specific characteristic or category within the larger group. By selecting individuals from each stratum, a stratified sample provides a representative sample that reflects the diversity and proportions of the different characteristics or categories in the overall population. Full definition

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Sentences with «stratified sample»

  • The main findings from the Education Next — PEPG survey reported in this essay are based on a nationally representative stratified sample of U.S. adults (age 18 years and older) and oversamples of Hispanics and non-Hispanic blacks, public school teachers, and residents of Florida (the last group for supplemental analyses not reported here). (educationnext.org)
  • Unit 4 Statistics I (Collecting and Representing Data; Correlation) • Design and criticise questionnaires (C) • Use stratified sampling methods (A) • Construct and use pie charts and frequency polygons (D) • Construct and interpret histograms with unequal class intervals (A) • Draw and use a line of best fit on scattergraph (C) (tes.com)
  • I used someone else's worksheet on stratified samples, search on Tes for the most popular. (tes.com)
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