Probability

There are 124 NRICH Mathematical resources connected to Probability
The Derren Brown coin flipping scam
problem

The Derren Brown coin flipping scam

Age
16 to 18
Challenge level
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Calculate probabilities associated with the Derren Brown coin scam in which he flipped 10 heads in a row.
Dicey Dice
problem

Dicey Dice

Age
16 to 18
Challenge level
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Invent a set of three dice where each one is better than one of the others?
Tying the Rope
problem

Tying the Rope

Age
14 to 16
Challenge level
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What is the probability that two pieces of rope are tied together, when Pat ties two loose ends together?
Perfect Eclipse
problem

Perfect Eclipse

Age
14 to 16
Challenge level
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Use trigonometry to determine whether solar eclipses on earth can be perfect.
Is your DNA unique?
problem

Is your DNA unique?

Age
16 to 18
Challenge level
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Use combinatoric probabilities to work out the probability that you are genetically unique!
X-Dice
problem

X-Dice

Age
16 to 18
Challenge level
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Explore these X-dice with numbers other than 1 to 6 on their faces. Which one is best?
Molecular sequencer
problem

Molecular sequencer

Age
14 to 18
Challenge level
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Investigate the molecular masses in this sequence of molecules and deduce which molecule has been analysed in the mass spectrometer.
Heavy hydrocarbons
problem

Heavy hydrocarbons

Age
14 to 18
Challenge level
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Explore the distribution of molecular masses for various hydrocarbons
Succession in Randomia
problem

Succession in Randomia

Age
16 to 18
Challenge level
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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?
The wrong stats
problem

The wrong stats

Age
16 to 18
Challenge level
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Why MUST these statistical statements probably be at least a little bit wrong?