Probability distributions, expectation and variance

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Understanding hypotheses

This article explores the process of making and testing hypotheses.
article
What is a random variable, really?

This article offers an advanced perspective on random variables for the interested reader.
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Spinners

Age

16 to 18

Challenge level

How do scores on dice and factors of polynomials relate to each other?
problem
Exponential intersection

Age

16 to 18

Challenge level

Can the pdfs and cdfs of an exponential distribution intersect?
problem
Data matching

Age

14 to 18

Challenge level

Use your skill and judgement to match the sets of random data.
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Statistics - maths of real life

Age

14 to 18

Challenge level

This pilot collection of resources is designed to introduce key statistical ideas and help students to deepen their understanding.
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Stats statements

Age

16 to 18

Challenge level

Are these statistical statements sometimes, always or never true? Or it is impossible to say?
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What's your mean?

Age

16 to 18

Challenge level

Can you work out the means of these distributions using numerical methods?
problem
Into the exponential distribution

Age

16 to 18

Challenge level

Get into the exponential distribution through an exploration of its pdf.
problem
Can you find ... random variable edition

Age

16 to 18

Challenge level

Can you create random variables satisfying certain conditions?