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Visualizing Data Spread Measures

Visualizing Data Spread Measures
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2019-04-29 02:34
Probability & StatisticsGeometric Construction
This example demonstrates how to visualize mean, range, IQR, and MAD for a dataset using GeoGebra. It involves core statistical concepts and utilizes commands like FrequencyTable, mean, mad, and Histogram. Ideal for high school students learning statistics and data analysis.

GeoGebra Commands & Parameters

  1. FrequencyTable(Numbers) → text1
  2. Unique(Numbers) → List
  3. mean(Numbers) → MeanNumbers
  4. Median(Numbers) → MedianNumbers
  5. mad(Numbers) → meanAbsoluteDeviation
  6. Frequency(Numbers) → Frequencies
  7. Sequence(n, n, 0, 20) → Boundaries
  8. Histogram(Boundaries, Numbers, true) → histogramDisplay
  9. Intersect(meanX, f) → I
  10. Point(meanX) → J
  11. Point(meanX) → K
  12. Circle(J, IQR / 2) → e
  13. Circle(K, meanAbsoluteDeviation) → g
  14. Line(J, f) → h
  15. Line(K, f) → i
  16. Intersect(e, h, 1) → L
  17. Intersect(e, h, 2) → M
  18. Intersect(g, i, 2) → N
  19. Intersect(g, i, 1) → O
  20. Vector(J, M) → u
  21. Vector(K, O) → v
  22. Vector(K, N) → w
  23. Vector(J, L) → a
  24. Point(meanX) → A
  25. Line(A, f) → j
  26. Vector(A, B) → b
  27. Vector(A, C) → c