How the other half lives: Some stats on the super-rich

Following the sudden death of his father last month, twenty-five year old Hugh Grosvenor became the seventh Duke of Westminster and effectively 'inherited half of London', as well as becoming one of the world's youngest billionaires.

The baby-faced Duke joins only nine other billionaires under the age of thirty, the youngest being Alexandra Andresen who, aged just twenty, already has a $1.2 billion fortune to her name. While that sounds like more than enough for anybody, sh only makes it into 1,476th place in terms of wealth according to the Forbes list of billionaires. She's a very long way behind Bill Gates, who with $75 billion in the bank tops the list and remains the world's richest individual.

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The height of higher education: Some stats on the world's top universities

As students everywhere pack their cars full of everything they'll need for the new university term, now seems like the perfect time to look a little deeper at the world's top higher education institutions. While the lecture theatres and halls of residence might seem packed, if you're currently attending university you're actually in a minority, according to the Organisation for Economic Co-Operation and Development (OECD).

When it comes to people taking advantage of tertiary education – defined by the OECD as universities or other institutions providing further training and education beyond school age – the numbers are relatively low.  Here are the top ten countries for higher education according to the percentage of the population aged 25-64 who have completed tertiary education…

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Using variance to make your charts easier to read

A bar chart is quite often the quickest and easiest way of showing quantitative data.

If I wanted to plot how much I am spending in each area of my business it might look something like this:

On this chart I can see quite clearly how much I have spent on marketing and how much I have spent on operations. This kind of chart also makes it easy to compare spends but in reality there aren’t many times when I want to compare marketing and operations spends. What I really want to know is whether I’ve stuck to my budgets or whether I have an over or underspend.

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Video: How to make a bar chart

Making a bar chart in ChartBlocks is now even easier with the new chart building wizard. Check out the video below to see just how easy it is.

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When not to use a chart

Choosing whether to display data in a chart or a table is fundamental to data presentation.

People often opt for a chart just because it looks nicer, without necessarily considering whether it’s really the best medium to get the key information across.

Consider a simple chart showing test score results for a small group of school children. For our example we’ll assume that they have each taken a test in English, science and mathematics...

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