The teacher poses to his students the Monty Hall problem, which investigates the probability of choosing a correct answer given three options and the subsequent probability of changing the original choice. The teacher explains why his students' instincts are not correct.

Examines the controversial use of expected frequencies in the Dreyfus Affair.

Explains the critical t-value method for two-sample t-tests.

Charlie explains the Texas Sharpshooter fallacy and the statstics of cancer clusters

How degrees of freedom and effect size determine the usefulness of a statistical study.