How Likely Is It:
Investigation 1: A First Look at Chance
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BBC Bitesize Math Probability Activity

Coin Tossing icon Coin Tossing – Explore probability concepts by simulating repeated coin tosses.
Hamlet Happens icon Hamlet Happens – Verify that rare events happen by drawing letters from a box.
Spinners icon Spinners – Work with spinners to learn about numbers and probabilities.
Stick or Switch icon Stick or Switch – Investigate probabilities of sticking with a decision, or switching.
Deal or No Deal
Data Analysis & Probability

The rules are simple. Choose a briefcase. Then as each round progresses, you must either stay with your original briefcase choice or make a "deal" with the bank to accept its cash offer in exchange for whatever dollar amount is in your chosen case.
Guess the Number -1,000 to 1,000
Data Analysis & Probability

Guess a number from -1,000 to 1,000. What is the best strategy?
Guess the Number 0 to 100
Data Analysis & Probability

Guess a number from 0 to 100. What is the best strategy?
Probability - Starfish
Data Analysis & Probability

It's a beautiful day at the beach. Let's learn about probability with starfish.
Creating a Spinner to Examine Experimental and Theoretical Outcomes
Simulating the Spread of a Wildfire Using Probability
Create a game spinner with variable sized sectors to look at experimental and theoretical probabilities. Parameters: Sizes of sectors, number of sectors, number of trials.

Experiment with probability using a fixed size section spinner, a variable section spinner, two regular 6-sided dice or customized dice.

In this applet you can adjust the parameters on two Gaussian curves to determine if there is a possibility of a difference between the two means.

Create a game spinner with one to twelve sectors in order to look at experimental and theoretical probabilities. Parameters: Number of sectors, number of trials.


How Likely Is It?

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Concept with Explanation
Selected Homework from ACE

The unit How Likely Is It? was created to help students:

Picture Vocabuary



stem-and-leaf plot


theoretical probability

experimental probability





tree diagram