胸围测量数据的正态分布：频数表、直方图与正态曲线

① This example demonstrates the normal distribution using a set of chest measurement data, including a frequency table, histogram, and fitted normal curve. ② Core mathematical concepts include the normal (Gaussian) distribution, frequency distribution, histograms, probability density functions, and statistical data visualization. ③ Construction highlights: the GeoGebra commands Sum, Histogram, and Normal are used; numerous data objects (A1 to C3) store measurement values, frequencies, and computed parameters. ④ Suitable for high school or introductory college statistics courses, helping students understand data shape, central tendency, spread, and how a normal curve approximates real-world data.