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Boosting Confidence by Query Expansion

  • From the example: The queried cell “19-year-old college students” contains only 2 samples
  • Confidence interval is large (i.e., low confidence). why?
    • Small sample size
    • High standard deviation with samples
  • Small sample sizes can occur at relatively low dimensional selections
    • Collect more data?― expensive!
    • Use data in other cells? Maybe, but have to be careful

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