Typical survey sample sizes are about 1000 people. Why is this?
This pilot collection of resources is designed to introduce key statistical ideas and help students to deepen their understanding.
When is an experiment described by the binomial distribution? Why do we need both the condition about independence and the one about constant probability?
Are these scenarios described by the binomial distribution?
This article explores the process of making and testing hypotheses.
Can you create random variables satisfying certain conditions?
Use your skill and judgement to match the sets of random data.
Get into the exponential distribution through an exploration of its pdf.
Can you work out the means of these distributions using numerical methods?
Can you build a distribution with the maximum theoretical spread?
How do you choose your planting levels to minimise the total loss at harvest time?
How is the length of time between the birth of an animal and the birth of its great great ... great grandparent distributed?
Are these statistical statements sometimes, always or never true? Or it is impossible to say?
This article offers an advanced perspective on random variables for the interested reader.
How do scores on dice and factors of polynomials relate to each other?
Can the pdfs and cdfs of an exponential distribution intersect?