Normal Distribution Probability Demo

This example demonstrates the calculation and visualization of probabilities under the normal distribution curve. It involves core mathematical concepts such as normal distribution, standard deviation, integral calculus, and hypothesis testing. The construction uses GeoGebra commands like Textfield and Integral, with objects including f, a, b, z1, z2, InputBox1, c, d, e, g, text1, text2, InputBox3, h, i, j, InputBox2, text3, k, l, m, text4, enabling users to input parameters and compute integrals. It is suitable for high school students and statistics enthusiasts.