Making and testing hypotheses

There are 10 NRICH Mathematical resources connected to Making and testing hypotheses
Perception versus reality
problem
Favourite

Perception versus reality

Age
14 to 18
Challenge level
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Infographics are a powerful way of communicating statistical information. Can you come up with your own?
Statistical shorts
problem
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Statistical shorts

Age
11 to 16
Challenge level
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Can you decide whether these short statistical statements are always, sometimes or never true?
In the bag
problem
Favourite

In the bag

Age
11 to 14
Challenge level
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Can you guess the colours of the 10 marbles in the bag? Can you develop an effective strategy for reaching 1000 points in the least number of rounds?
Reaction timer
problem
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Reaction timer

Age
11 to 14
Challenge level
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This problem offers you two ways to test reactions - use them to investigate your ideas about speeds of reaction.
Statistics - maths of real life
list

Statistics - maths of real life

Age
14 to 18
Challenge level
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This pilot collection of resources is designed to introduce key statistical ideas and help students to deepen their understanding.
See the Light
interactivity

See the light

Work out how to light up the single light. What's the rule?
Introducing NRICH TWILGO
interactivity

Introducing NRICH TWILGO

We're excited about this new program for drawing beautiful mathematical designs. Can you work out how we made our first few pictures and, even better, share your most elegant solutions with us?