Exploring Dice Probabilities and Evil Numbers in Relation to Pi
Exploring the probabilities of rolling numbers on a 20-sided die, the video reveals that 34 is the most likely number. It also dives into the concept of evil numbers and their relation to pi.
00:00:00 In a dungeon, you have to roll a 20-sided die to get a specific total and escape. Choosing 42, you try to reach it, but unfortunately go over. The best number to pick is uncertain, but maybe 40 or less.
🎲 You are stuck in a dungeon with a 20-sided die and need to roll a total of 42 to escape.
🐉 If you roll over 42, the dragon keeps you in the dungeon forever.
❓ The best number to pick for your total is uncertain, but picking 42 gives you many possibilities to win.
00:02:27 Understanding the probabilities of rolling specific numbers on a die and how it relates to a target number. Can smaller numbers have better odds?
🎲 The finite size of the die affects the outcome and in the long run, the numbers even out.
🔢 The probability of rolling a specific number is one in the average skip length of rolls.
📊 By using recurrence relations, the probability of rolling a specific number can be calculated based on previous numbers.
00:04:50 The video discusses the probabilities of rolling different numbers on a 20-sided die. The graph shows that the number 34 has the highest probability of being rolled between 20 and 40.
🎲 The probabilities of rolling different numbers on a 20-sided die can be calculated using recursion.
📈 The probability distribution of rolling the sum of two rolls on a 20-sided die forms an interesting graph.
🐉 The best total to give to the dragon in this game is 34, based on the calculated probabilities.
00:07:00 A video explores the likelihood of certain numbers appearing in different scenarios, such as rolling dice. It concludes that 34 is the most likely number to come up when rolling a die with 20 or more sides.
🔑 Numbers around 33 to 35 are likely to come up when picking numbers in a small interval.
🎲 Between 1 and 20, the number 20 is the most likely to come up in sums, followed by 34.
🔢 For a larger die, the sweet spot for the best probability is somewhere between N and 2N, with e being the leading order.
00:09:25 The video explores the concept of evil numbers and their relation to the number pi. It discusses a mathematical rule of thumb for determining the maximum of a function and its application to hitting specific targets.
🔑 The rule of thumb for finding the maximum of a function involving natural logarithms and large values of N is to multiply N by a certain approximation.
🎲 There are continuous versions of the problem involving a die that can roll any number, which result in a smooth distribution of outcomes.
😈 An evil number is one whose decimal expansion, when the digits are added up, equals 666. Pi is an example of an evil number.
00:11:46 Discover the concept of evil numbers and their distribution in the number system, with a focus on the infamous pi. Explore different definitions of evil numbers and their binary expansion, all while debunking the notion of evilness in numbers.
🔢 Roughly every fifth number is considered evil.
🎲 The concept of evil numbers can be related to rolling a 9-sided die.
📊 There are different definitions of evil numbers based on prime numbers and binary expansion.
00:14:04 The video discusses the concept of beastly primes, which are prime numbers that contain the sequence '666'. It also promotes Brilliant, an interactive platform for learning various subjects.
🔢 There are numbers called 'beastly primes' that contain the number 666 in a special place.
💡 Brilliant is a platform that offers courses and quizzes on various subjects, including math, logic, data science, and computer programming.
📱 Brilliant's courses and quizzes are accessible on mobile devices and provide a seamless, interactive learning experience.
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