Length: 1-3 Hours
Level: Introductory (majors)
Internet-based quizzes that purport to provide quick, valid IQ scores are quite popular and most students have either taken one or know someone who has. In this problem, this widespread interest in IQ scores is used to engage students in learning and communicating about the properties of the normal distribution. They discover the importance of information about dispersion in making sense of a distribution, apply knowledge about the normal distribution to interpret scores from legitimate intelligence tests, determine the probability of obtaining particular scores, and communicate about these probabilities through writing and simple drawings.