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置信区间可视化

置信区间可视化
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2020-02-01 00:17
微积分概率统计函数图像
①本范例通过动态生成样本并展示其置信区间，直观演示置信区间的概念；②涉及核心数学概念包括置信区间、样本均值、正态分布；③构造中运用了Sum, Segment, Sequence, Frequency, FrequencyTable, mean, InverseNormal, LaTeX, Midpoint, TableText等GeoGebra命令与对象；④适合高中及以上学生及统计学初学者学习概率统计知识。

GeoGebra 命令及参数

  1. Sum(B2:I2) → J2
  2. Sum(B3:I3) → J3
  3. Segment((μ, -1), (μ, 1)) → f
  4. Sequence(RandomDiscrete[xValues, probabilities], k, 1, n) → RandomSample
  5. Frequency(RandomSample) → FrequenciesfromRandomSample
  6. FrequencyTable(RandomSample) → text3
  7. mean(RandomSample) → SampleMean
  8. InverseNormal(0, 1, (1 + p_1) / 2) → k
  9. Sum(B6:I6) → J6
  10. LaTeX(μ, true, true) → text7
  11. LaTeX(σ, true, true) → text8
  12. Segment((LowerBound, 0), (UpperBound, 0)) → ConfidenceInterval
  13. Midpoint(ConfidenceInterval) → B
  14. TableText({{A1, B1, C1, D1, E1, F1, G1, H1, I1}, {A2, B2, C2, D2, E2, F2, G2, H2, I2}}, "vc|_cllllllll") → text1