Statistics Inspired By Pop Songs

This exhibit from the New York Hall of Science demonstrates the creation of a bell curve. How would you expect the bottom compartment to look once all of the spheres have fallen? What is the dataв being collected here? Why do the falling spheres create a bell curve? How would you design an exhibit that […]

Wable

This is a video of a machine that measures web activity and adjusts accordingly, creating a bar graph with the data. What other computer activities could this machine be used to measure? What advantages does the Wable offer over plotting a graph by hand?

Social Psychology Experiment

This student-created project is a short cartoon in which one character administers an experiment in which participants write their response. In this experiment, what is the independent variable? What is the dependent variable? Did you notice any potential extraneous variables in the second condition? What were they?

I Picked the Wrong Test

This video from the singer Britney Spearmen, sings about the importance of picking the correct test. Why is it important to pick the correct test in order to properly understand the data? When would you choose an independent-measure or single sample design? When would you choose a repeated-measures or matched samples design?

Correlation

The headless professor defines correlation and practical aspects, such as the direction and magnitude of relationships. What is a positive correlation? A negative correlation? Which is a stronger correlation: -.68, .42, or .09? What does a +1.0, 0, and a -1.0 correlation indicate?

Statistical Significance

The headless professor continues from the previous lesson on correlation. He begins with identifying the four possible relationships that could explain an association between variables. Probability values are covered and how to interpret them. What are the four relationships that can explain an association between variables? What is the null hypothesis and why is it […]

John Tukey

This clip is the beginning of an student project for an AP Statistics class. The students who made the film admit that they fictionalized some of the events of his life. Tukey is famous for saying that he would rather have an approximate answer to right question that an exact answer to the wrong question. […]

Florence Nightingale

Florence Nightingale was sent to Turkey by the British government during the Crimean War. She was intensely disturbed by the lack of sanitary conditions, and fought for years to improve the quality of care. One of her biggest weapons in the battle was statistics she collected data with which she was able to show that […]

The Gauss Story: A Holiday Tradition

This clip presents some general information about Carl Friedrich Gauss, who was instrumental in defining and understanding the normal distribution. In fact, the normal distribution is often referred to as the Gaussian distribution. What is the normal distribution? How is it mathematically defined?