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# Perplexing Probability

## Warp your brain with these tricky probability puzzles.

Probability is full of counter-intuitive results and paradoxes.

Challenge yourself by learning how to mathematically master some very surprising games and experiments including the Monty Hall game show, the Boy or Girl paradox, and the Tuesday paradox.

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1. 1

### Introduction

Don't expect to get all of these questions correct – some of them initially stump almost everyone.

1. #### Gaming Strategies

Learn some quick "pro tips" for solving probability puzzles.

2. #### Probability is Everywhere

Discover some counter-intuitive results when you applying probability to these real-life scenarios!

3. #### Exposing Misconceptions

Challenge yourself with probability puzzles that trip up plenty of experts.

2. 2

### Survive This Chapter

Dodge death by poison, Russian roulette, and a crazy prison warden.

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#### Poisoned Fruit

Get started with dependent probability ... and avoid the poison!

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#### The Crazy Warden

Outwit the warden and try to survive.

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#### Russian Roulette

Tricky conditions can make survival hard to calculate.

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#### Spin or Shoot?

Should you try your luck or spin first?

3. 3

### Brain-Warping Probability

Most people's intuitions about the odds of winning these games are wrong.

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#### The Monty Hall Game

The famous mind-bender: find the car and avoid the man-eating goat!

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#### More Man-Eating Goats

What happens when Monty Hall has a lot more doors?

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#### The Boy-or-Girl Paradox

A small change of conditions can make a big difference.

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#### Tuesday Changes Everything

Explore this counterintuitive twist to the Boy-or-Girl Paradox.

4. 4

### Crazy Mad Dice

Custom crafted competitive craziness.

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#### Crazy Dice Warmup

See what happens when the dice don't read 1 to 6 anymore.

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#### Competitive Design

Design your own dice and try to beat your friends.

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#### Beating a Standard Die (I)

Under what conditions can you beat a regular die?

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#### Beating a Standard Die (II)

Explore more scenarios that match a custom die against a standard one.