In this project, you will interact with several simulations and animations that show why the Normal distribution is important and useful. You will also explore a real data set containing the Intelligence Quotient (IQ) scores for boys and girls in 37 eastern European primary schools. As you will see in this chapter, IQ is a measure constructed to be normally distributed with a mean of 100 and a standard deviation of 16. In the example in the text, you will calculate predicted probabilities; in this internet project, you will discover how well the real data fits the prediction.