Category Archives for "Probability"

(Contributor Post) A Primer on Statistical Significance — Grade Comparison, Fertilizer Selection, Dice Rolling and Tire Lifespan Evaluation and More!

Statistical significance — in a nutshell — is a way of determining if an outcome occurred by random chance, or if there was something else that caused that outcome.

Upcoming Last-Minute McGill MATH 323 Q&A Session

Hello everyone. For the last hours just before the final, we are hosting a free-for-all Q&A session for McGill MATH 323 (Probability). This is mainly for those who want to sharpen their skills further and address finer issues. (by the way, this is not the time to learn everything from scratch — try to do […]

Given a bunch of boxes and balls, what is the chance that randomly dropping the balls will fill all the boxes?

Carl asked the following discrete-math-style probability question: $N$ balls are randomly dropped into $k$ boxes $(k \le N)$. What is the probability that all boxes are filled? Want to know the answer? Here it is!