Normal & InverseNormal Calculator Visual Demonstration

This example demonstrates how to compute and visualize results for the Normal distribution (Normal) and how to find the corresponding quantile via the InverseNormal function given a target probability. The key mathematical ideas are probability computation for a normal model, the relationship between distribution functions and quantiles, and the inverse-function concept used to solve “given probability, find the value.” In construction, GeoGebra’s Integral, Normal, and InverseNormal commands are used to link area/probability interpretation with numerical integration and to map inputs to outputs. The setup includes multiple parameter variables (e.g., a, b, c, …) and text objects (text1–text13) to drive inputs and present computed values clearly. Suitable for high school to introductory college courses in probability & statistics, and ideal for interactive classroom demonstrations and self-study.