MathPlotAI Logo MathPlotAI

Identifying Outliers

Identifying Outliers
Loading the math board and drawing, please wait…
2019-12-17 04:20
Coordinate GeometryProbability & StatisticsGeometric Construction
This example demonstrates how to identify points that are higher or lower than expected (outliers) in a scatter plot. It involves core math concepts like scatter plots, conditional probability, and geometric constructions. It uses GeoGebra commands and objects such as RandomElement, Append, Shuffle, If, Point, Polygon, and Circle. Suitable for middle school and above students for practicing probability, statistics, and data analysis.

GeoGebra Commands & Parameters

  1. RandomElement(adjectives) → adjective
  2. Append("Choose one", choices) → userinput
  3. Shuffle(letters) → shuffledletters, {"\text{B}", "\text{C}", "\text{A}", "\text{D}"}
  4. Shuffle(choices) → shufflechoices, {"\text{B}", "\text{C}", "\text{D}", "\text{A}"}
  5. If(adjective ≟ "\text{higher}", SelectedElement[userinput] ≟ label2, SelectedElement[userinput] ≟ label3) → correct
  6. Shuffle(l1) → shuffledpoints, {(59.5292933895907, 43.7178798803601), (39.6507044269599, 24.4145786453339), (12.5298143475332, 13.685721792114), (56.8145220369809, 46.4326512329699), (76.1572679243259, 45.7539583948174), (19.9954355672102, 27.259578555163), (37.1448402912256, 33.722074006633), (44.7677241597748, 40.4940888991359), (63.9407968375817, 43.7178798803601), (71.0670716381825, 46.9416708615842), (59.6989665991288, 48.129383328351), (44.1851252440031, 35.9892844151546), (64.9588360948104, 51.5228475191133), (50.6287758787486, 44.2228380039961), (81.5868106295455, 57.2917366434091), (16.5012928873186, 15.2264101476412), (81.9261570486217, 53.8982724526469), (32.491092610576, 21.6700607823868), (50.5366132840707, 32.1801016317683), (57.1538684560571, 39.136703222831), (73.272823362178, 56.6130438052567), (24.4961927489473, 16.5390056473116), (57.3235416655953, 33.7071605176114), (31.0241941871876, 36.5916050797593), (12.8691607666094, 19.793957335486), (68.3523002855726, 51.5228475191133), (34.0783119588736, 27.5989249742393), (80, 50), (64.2801432566579, 38.9670300132929), (70.5563621010172, 54.962255728572), (6.76092522323731, 17.0791859828763), (28.3094228345778, 27.9382713933155), (44.7677241597748, 29.6350034886967), (75.6482482957116, 52.0318671477276), (51.045632912685, 37.7793175465261), (28.1397496250397, 32.0104284222302), (13.3781803952238, 24.0357875739389), (7.60929127092788, 11.1406236490423), (24.5766122247393, 24.0357875739389)}
  7. Point(yAxis) → E
  8. Polygon(E, F, I, J) → q1, e, f, i, j
  9. Circle(K_2, 7) → c
  10. Circle(L_2, 7) → d
  11. If(adjective ≟ "\text{higher", label2, label3) → letter