7.2 Averages

7.2.1 Mean, median and mode

The mean, median and mode are all types of average and are typical of the data they represent. Each has advantages and disadvantages, and can be used in different situations, but they all give us an idea of the general size of the values involved. Here we provide brief definitions, and some idea of when each should be used.

The following set of data i
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

Missouri Government and Politics: Lecture 3 - Constitution
This course is designed to familiarize students with the constitutional framework and institutions of the state of Missouri, including the legislative, executive, and judiciary branches, and its political parties. Missouri's inherent conservatism and individualism is explored in the frame of the state's role as a ''laboratory of democracy." Special attention is given to innovations in welfare and education policies, as well as Missouri's role in the national debates over the right to privacy a
Author(s): No creator set

License information
Related content

goREACT App for iOS
'With goREACT, you can become a virtual chemist. Whether you're a novice or expert, the free play and guided modes make it fun and fascinating.- Initiate nearly 300 virtual chemical reactions by dragging elements into the Reaction Area.- Amazing images and videos illustrate the molecules you create.- Select alternate views of the Periodic Table to discover different aspects of the elements’ chemical properties.- Touch any of the Periodic Table's 118 elements to see an image and fun fact ab
Author(s): No creator set

License information
Related content

Provost Corner with Interim Provost John A. Barrett - April 2015
In the April edition of the Provost Corner - John Barrett welcomes Dr. Sharon Gaber as the 17th president, and the Shining Star Awards are announced.
Author(s): No creator set

License information
Related content

3.1 Introduction

The purpose of this section is to consolidate your understanding of the theory of evolution through natural selection by looking at a specific example. The guppy (Poecilia reticulata) is a small fish whose natural habitat is small streams in northern Trinidad, but it is also a popular aquarium fish. Male and female guppies are very different in appearance (Author(s): The Open University

Introduction

For many calculations you use a calculator. The main aim of this unit is to help you to do this in a sensible and fruitful way. Using a calculation to solve a problem involves four main stages:

  • Stage 1: working out what calculation you want to do;

  • Stage 2: working out roughly what size of answer to expect from your calculation;

  • Stage 3: carrying out the calculation;

  • Stage 4: interpreting the answer – Doe
    Author(s): The Open University

    License information
    Related content

    Copyright © 2013 The Open University

The Gunpowder Plot - Documentary, Part 4
This part of the video shows the place where the gunpowder was placed and what it looks like today. There is an explanation of the way in which the conspirators were caught. Also, there is a technical explanation of what the explosion would have been like if it had taken place. (02:22)
Author(s): No creator set

License information
Related content

Introduction

Your course might not include any maths or technical content but, at some point during your course, it's likely that you'll come across information represented in charts, graphs and tables. You'll be expected to know how to interpret this information. This unit will help you to develop the skills you need to do this. This unit can be used in conjunction with openlearn unit LDT_4 More working with charts, graphs and tables, which looks into more ways to present statistical inform
Author(s): The Open University

License information
Related content

Copyright © 2013 The Open University

3.3 How others see us

The relative nature of poverty is an old theme in social science. Adam Smith, the eighteenth century writer who is often regarded as the founding father of economics, put it this way: ‘By necessaries I understand not only the commodities that are indispensably necessary for the support of life, but whatever the custom of the country renders it indecent for creditable people, even the lowest orders, to be without’ (Smith, 1776, quoted in Sen, 1981).

Ideas of what it is to be poor are
Author(s): The Open University

License information
Related content

Copyright © 2013 The Open University

Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to c
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

Derived copy of Nervous System Disorders
Shannon McDermott
By the end of this section, you will be able to: Describe the symptoms, potential causes, and treatment of several examples of nervous system disorders
<

Author(s): No creator set

License information
Related content

De week van Karrewiet : Vraagjes bij uitzending van 29 september
karrewiet.png

Eerst bekijken de leerlingen de uitzending van Karrewiet (29/09/2014).  Hierna beantwoorden ze de vragen op de werkbladen.


Author(s): No creator set

License information
Related content

De wetenschap achter constructies
1.jpg

Deze themapagina van het NEMO Science Center richt zich op het bouwen van een constructie. Uitdagingen zijn onder meer:

  • een tipi bouwen met een krant;
  • een toren bouwen met bekers;
  • bouwen met spaghetti;
  • architectuur bij dieren;
  • zelf een …

Author(s): No creator set

License information
Related content

Money talks: Insurers’ insurers


Author(s): The Economist

License information
Related content

Rights not set

Season 2 – Lesson 08 – Coffee Break Spanish
Coming up in this lesson:

An easy way of extending your range of language is by using adjectives, and this lesson of Coffee Break Spanish looks at adjectives in detail. In Spanish adjectives have to “agree” with the word they describe and you’ll learn the rules of adjective agreements.

Please note that lesson 08 of Season 2 was originally known as lesson 208 of Coffee Break Spanish. We have renumbered the lessons of each season as lessons 1-40 to make things more simple for our l
Author(s): No creator set

License information
Related content

2.6 Conclusion

This section has considered the reasons for different systems of accounting regulation in more detail. A number of factors external to accounting (e.g. the legal system and so-called ‘accidents of history’) have been important in shaping accounting regulations differently from one jurisdiction to another. The contingent model of accounting change provides an explanation of how accounting regulation continues to evolve and how dealing with one issue can have unintended consequences, leadin
Author(s): The Open University

License information
Related content

Copyright © 2016 The Open University

Season 2 – Lesson 32 – Coffee Break Spanish
Coming up in this lesson:

Lesson 32 continues the story of Andrew and María-José and their blossoming friendship! María-José has been on vacation in France. The main topic of discussion in this lesson is the weather, using a variety of tenses. Once again, you’ll develop your knowledge and listening skills by listening to this conversation where language is used in context.

Please note that lesson 32 of Season 2 was originally known as lesson 232 of Coffee Break Spanish. We have r
Author(s): No creator set

License information
Related content

Teachers sharing resources online
This free course, Teachers sharing resources online, is designed to help you learn about how learning resources can be shared using online repositories, i.e. websites that allow for the uploading of electronic materials that can then be used and adapted by others. One of the leading examples of such websites is TES Connect. While the course draws its examples and activities from this site its principles are designed so that they may be applied to others. Author(s): Creator not set

License information
Related content

Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

Animal Partnerships
David Attenborough looks at how some creatures have formed mutually beneficial partnerships - if you scratch my back, I'll scratch yours. From the BBC.  This video shows how symbiosis occurs in many different species of animals. (04:20)
Author(s): No creator set

License information
Related content

The week ahead: Another bite of the Apple
The tech world anticipates the launch of Apple's new iPhone, an anti-corruption campaigner runs for a seat in Russia's regional elections and North Korea commemorates its National Day
Author(s): The Economist

License information
Related content

Rights not set