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Estimating Measures of Center on a Dot Plot

Estimating Measures of Center on a Dot Plot
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2020-06-14 00:17
Coordinate GeometryProbability & Statistics
This example demonstrates how to estimate measures of center such as mode, median, and mean using a dot plot. It utilizes GeoGebra commands like DotPlot and Segment. Suitable for middle school and above students learning basic statistics.

GeoGebra Commands & Parameters

  1. Mode(A4:A25) → A3
  2. Median(A4:A24) → A2
  3. Median(B4:B24) → B2
  4. Mode(B4:B24) → B3
  5. mean(B4:B24) → B1
  6. Median(C4:C24) → C2
  7. Mode(C4:C24) → C3
  8. mean(C4:C24) → C1
  9. mean(A4:A25) → A1
  10. DotPlot(l5, false, 0.4) → l6
  11. DotPlot(l3, false, 0.4) → l4
  12. DotPlot(l1, false, 0.4) → l2
  13. Segment((Emedian, 0), (Emedian, D2)) → g
  14. Segment((Emode, 0), (Emode, D3)) → h
  15. Segment((Emean, 0), (Emean, D1)) → f
  16. Segment(B_{1}, (B1, F1)) → l
  17. Segment(C_{1}, (C1, F1)) → p
  18. Segment(C_{2}, (C2, F2)) → q
  19. Segment(C_{3}, (C3(1), F3)) → r
  20. Segment(A_{3}, (A3(1), F3)) → k
  21. Segment(A_{1}, (A1, F1)) → i
  22. Segment(A_{2}, (A2, F2)) → j
  23. Segment(B_{2}, (B2, F2)) → m
  24. Segment(B_{3}, (B3(1), F3)) → n