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不同宽度的直方图

不同宽度的直方图
几何画板及绘图内容加载中，请稍等……
2017-05-17 15:47
概率统计滑块动画函数图像
所属专题 Concrete-Pictorial-Abstract and the Teaching for Mastery
①本范例演示了如何使用 GeoGebra 绘制不同宽度的直方图，展示了数据分布的变化；②涉及的核心数学概念包括数据统计、频率分布、直方图绘制；③作图要点使用了 CountIf 计算频率，Polygon 绘制条形，If 条件判断，TableText 显示数据，Histogram 绘制直方图等命令；④适合高中数学教学，用于概率统计和数据分析入门。

GeoGebra 命令及参数

  1. CountIf(B7, list1) → C2
  2. CountIf(B5, list1) → C1
  3. Polygon(A, B, C, D) → poly1, a, b, c, d
  4. Polygon(A_1, B_1, C_1, D_1) → poly1_1, a_1, b_1, c_1, d_1
  5. Polygon(A_2, B_2, C_2, D_2) → poly1_2, a_2, b_2, c_2, d_2
  6. Polygon(A_3, B_3, C_3, D_3) → poly1_3, a_3, b_3, c_3, d_3
  7. Polygon(A_4, B_4, C_4, D_4) → poly1_4, a_4, b_4, c_4, d_4
  8. Polygon(A_5, B_5, C_5, D_5) → poly1_5, a_5, b_5, c_5, d_5
  9. Polygon(A_6, B_6, C_6, D_6) → poly1_6, a_6, b_6, c_6, d_6
  10. Polygon(A_7, B_7, C_7, D_7) → poly1_7, a_7, b_7, c_7, d_7
  11. Polygon(A_8, B_8, C_8, D_8) → poly1_8, a_8, b_8, c_8, d_8
  12. Polygon(A_9, B_9, C_9, D_9) → poly1_9, a_9, b_9, c_9, d_9
  13. Polygon(A_{10}, B_{10}, C_{10}, D_{10}) → poly1_{10}, a_{10}, b_{10}, c_{10}, d_{10}
  14. Polygon(A_{11}, B_{11}, C_{11}, D_{11}) → poly1_{11}, a_{11}, b_{11}, c_{11}, d_{11}
  15. If(D1 ≟ E1, Random[21, 30] / 10, Random[0, 20] / 10) → A11
  16. If(D2 ≟ E2, Random[21, 30] / 10, Random[31, 50] / 10) → A12
  17. CountIf(B5, list2) → C5
  18. CountIf(B6, list2) → C6
  19. CountIf(B7, list2) → C7
  20. TableText({{B4, C4, D4}, {B5, C5, D5}, {B6, C6, D6}, {B7, C7, D7}}, "|_") → text13
  21. TableText({{B4}, {B5}, {B6}, {B7}}, "|_") → text14
  22. Histogram({0, 2, 3, 5}, list3) → f