There are **47** NRICH Mathematical resources connected to **Experimental probability**, you may find related items under Probability.

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In this follow-up to the problem Odds and Evens, we invite you to analyse a probability situation in order to find the general solution for a fair game.

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What statements can you make about the car that passes the school gates at 11am on Monday? How will you come up with statements and test your ideas?

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What can you say about the child who will be first on the playground tomorrow morning at breaktime in your school?

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Is the regularity shown in this encoded message noise or structure?

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How is the length of time between the birth of an animal and the birth of its great great ... great grandparent distributed?

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

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

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Kaia is sure that her father has worn a particular tie twice a week in at least five of the last ten weeks, but her father disagrees. Who do you think is right?

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Six balls are shaken. You win if at least one red ball ends in a corner. What is the probability of winning?

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Seven balls are shaken. You win if the two blue balls end up touching. What is the probability of winning?

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Discs are flipped in the air. You win if all the faces show the same colour. What is the probability of winning?

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Have a go at this game which involves throwing two dice and adding their totals. Where should you place your counters to be more likely to win?

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Roll two red dice and a green dice. Add the two numbers on the red dice and take away the number on the green. What are all the different possible answers?

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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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Simple models which help us to investigate how epidemics grow and die out.

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When two closely matched teams play each other, what is the most likely result?

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Engage in a little mathematical detective work to see if you can spot the fakes.

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You'll need to work in a group for this problem. The idea is to decide, as a group, whether you agree or disagree with each statement.

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Find out about the lottery that is played in a far-away land. What is the chance of winning?

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Can you work out the probability of winning the Mathsland National Lottery?

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If everyone in your class picked a number from 1 to 225, do you think any two people would pick the same number?

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Imagine a room full of people who keep flipping coins until they get a tail. Will anyone get six heads in a row?

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Move your counters through this snake of cards and see how far you can go. Are you surprised by where you end up?

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Calculate probabilities associated with the Derren Brown coin scam in which he flipped 10 heads in a row.

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Explore these X-dice with numbers other than 1 to 6 on their faces. Which one is best?

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By tossing a coin one of three princes is chosen to be the next King of Randomia. Does each prince have an equal chance of taking the throne?

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Which of these ideas about randomness are actually correct?

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Can you generate a set of random results? Can you fool the random simulator?

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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This article, for students and teachers, is mainly about probability, the mathematical way of looking at random chance and is a shorter version of Taking Chances Extended.

This article, for students and teachers, is mainly about probability, the mathematical way of looking at random chance.

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Terry and Ali are playing a game with three balls. Is it fair that Terry wins when the middle ball is red?

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Charlie thinks that a six comes up less often than the other numbers on the dice. Have a look at the results of the test his class did to see if he was right.

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In this game you throw two dice and find their total, then move the appropriate counter to the right. Which counter reaches the purple box first?

Edward Wallace based his A Level Statistics Project on The Mean Game. Each picks 2 numbers. The winner is the player who picks a number closest to the mean of all the numbers picked.

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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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This is a game for two players. You will need some small-square grid paper, a die and two felt-tip pens or highlighters. Players take turns to roll the die, then move that number of squares in. . . .

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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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A maths-based Football World Cup simulation for teachers and students to use.

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A counter is placed in the bottom right hand corner of a grid. You toss a coin and move the star according to the following rules: ... What is the probability that you end up in the top left-hand. . . .

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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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You and I play a game involving successive throws of a fair coin. Suppose I pick HH and you pick TH. The coin is thrown repeatedly until we see either two heads in a row (I win) or a tail followed by. . . .