Normal Probabilities from a Table with Negative Z-scores

This interactive example demonstrates the process of finding probabilities from a standard normal distribution table, specifically focusing on cases starting with negative z-scores. It covers fundamental statistical concepts including the Standard Normal Distribution, Z-score calculations, and the relationship between the area under the curve and probability. The construction utilizes GeoGebra commands such as Vector, Normal, and OrthogonalLine for geometric layout, while employing Textfield, InputBox, and If statements to create a dynamic user interface for data entry and conditional display. This tool is ideal for high school and college students studying introductory statistics and probability.