Standard Deviation Testing

Standard Deviation Testing
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2018-12-20 14:32
This example demonstrates the calculation and visualization of standard deviation through dynamic data, showcasing its distribution characteristics. Core mathematical concepts include standard deviation, derivatives, logarithms, functions, quadratic equations, and probability & statistics. GeoGebra commands used in construction include Sequence, Sort, mean, stdev, Remove, Segment, Polygon, and LaTeX. Suitable for high school and above mathematics learning, ideal for probability statistics and data analysis instruction.

GeoGebra Commands & Parameters

  1. Sequence(Random[1, 20], i, 1, rannum - 1) → ShortSeed
  2. Sort(Sequence[Random[1, 20], i, 1, rannum]) → Seed
  3. mean(ShortSeed) → MeanSS
  4. Textfield(rannum) → InputBox1
  5. mean(Seed) → meanR
  6. stdev(Seed) → stdR
  7. Textfield(remnum) → InputBox2
  8. Remove(Seed, {remnum}) → revSeed
  9. Sequence((Element[Seed, i], (i * 0.5) + 4), i, 1, rannum) → listSeed
  10. Sequence((meanR, (i * 0.5) + 4), i, 1, rannum) → MeanSeq
  11. Sequence(Segment[Element[listSeed, i], Element[MeanSeq, i]], i, 1, rannum) → MeanDistSeg
  12. Sequence((Element[revSeed, i], (i * 0.5)), i, 1, rannum) → listrevSeed
  13. mean(revSeed) → MeanRev
  14. Sequence((MeanRev, (i * 0.5)), i, 1, rannum) → RevMeanSeq
  15. Segment((meanR, 4.25), (meanR, 4.25 + (rannum * 0.5))) → MeanLineR
  16. Sequence(Segment[Element[listrevSeed, i], Element[RevMeanSeq, i]], i, 1, rannum) → RevMeanDistSeg
  17. Segment((MeanRev, 0.25), (MeanRev, (rannum * 0.5) + 0.25)) → RevMeanLine
  18. stdev(Seed) → SDR
  19. stdev(revSeed) → SDRev
  20. Polygon(A, C, D, B) → q1, a_1, c_1, d, b_1
  21. Polygon(E, G, H, F) → q2, e_1, g, h, f
  22. LaTeX(c_1, true, true) → text8

AI Drawing Prompt Reference

Visualize the calculation and visualization of standard deviation through dynamic data, including randomly generated data points, mean lines, and standard deviation lines, with a slider to dynamically adjust the dataset, different colors to distinguish the original and modified datasets after removing specific data, and highlight key areas using polygons.
The prompt above was compiled from the original drawing commands and is for reference only.