# Archive

- How to calculate permutations and combinations
- Addition and Multiplication Probability Formulas
- New animated video showing how to calculate standard deviation
- Can you open the secret passageway in time?
- Pairs of Socks in the Dark
- Just released iPhone game called Flippin’ Heads
- Law of Large Numbers – Explained and Visualized
- Blowin’ in the wind
- True Story: Travel Coincidence!
- Flippin’ and Standin’
- What is the probability of finding your birthday in the first 100 million digits of pi?
- Will you be matched with your date on Valentine’s day?
- Swimming in the Spotlight
- Will there be a peanut butter cup in your daughter’s candy stash?
- Logic Puzzle: So you come to a fork in the road…
- Bayes Theorem: Are you flipping a fair coin?
- Odds of Having Your Identity Stolen
- Three dogs on an equilateral triangle…
- With Two Dice, What’s the Probability of Rolling Doubles?
- Geometric Probability: Breaking Spaghetti
- So you’ve forgotten your friend’s phone number…
- What’s the probability of rolling a straight with 6 dice?
- Combinatorics Puzzle: How many options does Johnny have?
- Probability Puzzle: Would you play this carnival game?
- What’s the probability that it will rain at some point this week?
- Counterintuitive Index Cards
- Shared birthdays on a soccer team…
- Russian Roulette