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Resources tagged with Probability similar to Probably a Code?:

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Broad Topics > Probability > Probability

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Stage 5 Cipher Challenge

Stage: 5 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Can you crack these very difficult challenge ciphers? How might you systematise the cracking of unknown ciphers?

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Distribution Maker

Stage: 5 Challenge Level: Challenge Level:1

This tool allows you to create custom-specified random numbers, such as the total on three dice.

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Introducing Distributions

Stage: 4 Challenge Level: Challenge Level:2 Challenge Level:2

When five dice are rolled together which do you expect to see more often, no sixes or all sixes ?

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The Random World

Stage: 3, 4 and 5

Think that a coin toss is 50-50 heads or tails? Read on to appreciate the ever-changing and random nature of the world in which we live.

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Non-transitive Dice

Stage: 3 and 4 Challenge Level: Challenge Level:2 Challenge Level:2

Alison and Charlie are playing a game. Charlie wants to go first so Alison lets him. Was that such a good idea?

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Win or Lose?

Stage: 4 Challenge Level: Challenge Level:2 Challenge Level:2

A gambler bets half the money in his pocket on the toss of a coin, winning an equal amount for a head and losing his money if the result is a tail. After 2n plays he has won exactly n times. Has. . . .

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Stop or Dare

Stage: 2, 3 and 4 Challenge Level: Challenge Level:1

All you need for this game is a pack of cards. While you play the game, think about strategies that will increase your chances of winning.

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Red or Black Spinner

Stage: Early years, 1, 2, 3 and 4 Challenge Level: Challenge Level:1

A simple spinner that is equally likely to land on Red or Black. Useful if tossing a coin, dropping it, and rummaging about on the floor have lost their appeal. Needs a modern browser; if IE then at. . . .

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Scratch Cards

Stage: 4 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

To win on a scratch card you have to uncover three numbers that add up to more than fifteen. What is the probability of winning a prize?

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An Introduction to Tree Diagrams

Stage: 3 and 4

This article explains how tree diagrams are constructed and helps you to understand how they can be used to calculate probabilities.

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Discussing Risk and Reward

Stage: 5 Challenge Level: Challenge Level:1

10 starting points for risk vs reward

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Do You Feel Lucky?

Stage: 3 and 4 Challenge Level: Challenge Level:1

Some people offer advice on how to win at games of chance, or how to influence probability in your favour. Can you decide whether advice is good or not?

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Why Do People Find Probability Unintuitive and Difficult?

Stage: 2, 3, 4 and 5

Uncertain about the likelihood of unexpected events? You are not alone!

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What's the Point of Squash?

Stage: 4 and 5 Challenge Level: Challenge Level:1

Under which circumstances would you choose to play to 10 points in a game of squash which is currently tied at 8-all?

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Dicey Dice

Stage: 5 Challenge Level: Challenge Level:1

Invent a set of three dice where each one is better than one of the others?

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Heavy Hydrocarbons

Stage: 4 and 5 Challenge Level: Challenge Level:2 Challenge Level:2

Explore the distribution of molecular masses for various hydrocarbons

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Coin Lines

Stage: 4 Challenge Level: Challenge Level:2 Challenge Level:2

If a coin rolls and lands on a set of concentric circles what is the chance that the coin touches a line ?

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Interactive Spinners

Stage: 3 and 4 Challenge Level: Challenge Level:1

This interactivity invites you to make conjectures and explore probabilities of outcomes related to two independent events.

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Fixing the Odds

Stage: 4 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

You have two bags, four red balls and four white balls. You must put all the balls in the bags although you are allowed to have one bag empty. How should you distribute the balls between the two. . . .

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Which Spinners?

Stage: 3 and 4 Challenge Level: Challenge Level:1

Can you work out which spinners were used to generate the frequency charts?

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Game of PIG - Sixes

Stage: 2, 3, 4 and 5 Challenge Level: Challenge Level:1

Can you beat Piggy in this simple dice game? Can you figure out Piggy's strategy, and is there a better one?

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The Wrong Stats

Stage: 5 Challenge Level: Challenge Level:1

Why MUST these statistical statements probably be at least a little bit wrong?

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Twenty20

Stage: 2, 3 and 4 Challenge Level: Challenge Level:1

Fancy a game of cricket? Here is a mathematical version you can play indoors without breaking any windows.

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396

Stage: 4 Challenge Level: Challenge Level:1

The four digits 5, 6, 7 and 8 are put at random in the spaces of the number : 3 _ 1 _ 4 _ 0 _ 9 2 Calculate the probability that the answer will be a multiple of 396.

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From A Random World to a Rational Universe

Stage: 2, 3 and 4

In the time before the mathematical idea of randomness was discovered, people thought that everything that happened was part of the will of supernatural beings. So have things changed?

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Dicey Decisions

Stage: 5 Challenge Level: Challenge Level:1

Can you devise a fair scoring system when dice land edge-up or corner-up?

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Is Your DNA Unique?

Stage: 5 Challenge Level: Challenge Level:1

Use combinatoric probabilities to work out the probability that you are genetically unique!

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Scale Invariance

Stage: 5 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

By exploring the concept of scale invariance, find the probability that a random piece of real data begins with a 1.

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Any Win for Tennis?

Stage: 5 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

What are your chances of winning a game of tennis?

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Perfect Eclipse

Stage: 4 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Use trigonometry to determine whether solar eclipses on earth can be perfect.