Resources tagged with: Probability distributions, expectation and variance

There are 16 NRICH Mathematical resources connected to Probability distributions, expectation and variance, you may find related items under Advanced probability and statistics.

Problem Primary curriculum Secondary curriculum

Aim High

How do you choose your planting levels to minimise the total loss at harvest time?

Age 16 to 18

Challenge Level

Problem Primary curriculum Secondary curriculum

What's Your Mean?

Can you work out the means of these distributions using numerical methods?

Age 16 to 18

Challenge Level

Problem Primary curriculum Secondary curriculum

Time to Evolve 2

How is the length of time between the birth of an animal and the birth of its great great ... great grandparent distributed?

Age 16 to 18

Challenge Level

Problem Primary curriculum Secondary curriculum

Stats Statements

Are these statistical statements sometimes, always or never true? Or it is impossible to say?

Age 16 to 18

Challenge Level

Problem Primary curriculum Secondary curriculum

Into the Exponential Distribution

Get into the exponential distribution through an exploration of its pdf.

Age 16 to 18

Challenge Level

Problem Primary curriculum Secondary curriculum

Random Inequalities

Can you build a distribution with the maximum theoretical spread?

Age 16 to 18

Challenge Level

Problem Primary curriculum Secondary curriculum

Spinners

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

Age 16 to 18

Challenge Level

Problem Primary curriculum Secondary curriculum

A Well-stirred Sample

Typical survey sample sizes are about 1000 people. Why is this?

Age 16 to 18

Challenge Level

Problem Primary curriculum Secondary curriculum

Binomial or Not?

Are these scenarios described by the binomial distribution?

Age 16 to 18

Challenge Level

Article Live Primary curriculum Secondary curriculum

What Is a Random Variable, Really?

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

Age 16 to 18

Problem Primary curriculum Secondary curriculum

Binomial Conditions

When is an experiment described by the binomial distribution? Why do we need both the condition about independence and the one about constant probability?

Age 16 to 18

Challenge Level

Problem Primary curriculum Secondary curriculum

Can You Find ... Random Variable Edition

Can you create random variables satisfying certain conditions?

Age 16 to 18

Challenge Level

List Primary curriculum Secondary curriculum

Statistics - Maths of Real Life

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

Age 14 to 18

Challenge Level

Problem Primary curriculum Secondary curriculum

Exponential Intersection

Can the pdfs and cdfs of an exponential distribution intersect?

Age 16 to 18

Challenge Level

Article Primary curriculum Secondary curriculum

Understanding Hypotheses

This article explores the process of making and testing hypotheses.

Age 14 to 18

Problem Primary curriculum Secondary curriculum

Data Matching

Use your skill and judgement to match the sets of random data.

Age 14 to 18

Challenge Level