1 General Mental and Psychological Abilities · 1.5.2 Data interpretation and sufficiency

1.5.2.7 Missing-data tables and Venn-based data interpretation

In a missing-data table, totals and averages are equations: fill one blank per row or column from them; in a Venn-based set, fill the regions from the centre outwards and use n(A ∪ B) = n(A) + n(B) − n(A ∩ B).

  • APPSC Group 1
  • Advanced level
  • 8 min read
  • Full course

Key terms

  • missing data
  • row total
  • column total
  • balancing figure
  • average
  • corrected average
  • overall percentage
  • Venn diagram
  • two sets
  • three sets
  • only A
  • exactly two
  • neither
  • inclusion-exclusion
  • maximum overlap
  • minimum overlap
  • two-way table

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Common trapsFoundation
  5. Quick revisionFoundation

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