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Cool infographics around the web – [july 31]

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Time for another round of cool charting / info-graphic ideas around the web.

Most Popular Baby Names – all the way from 1880

baby names trend from 1880 - most popular names of all

Nametrends is a cool website totally dedicated to analyzing and showing baby name trends. They have pretty interesting stuff like, how baby names ending with -lie (charlie, willie, ellie etc.) fared from 1880. Go ahead, see the neat stuff at nametrends. [via kottke]

Flare toolkit for visualizing in Flash

Flare toolkit for visualizing data

Flare is a powerful tool for visualizing large amounts of data using Action Script. Check it out. [via FlowingData]

Funny map of online communities

Funny map of online communities - XKCD

This cartoonish visualization from XKCD pokes fun at the sizes and boundaries of various online communities. Really hilarious and neatly done. [via cool infographics]

Visualizing design process

Visualizing design process

This is a non-linear info graphic that talks about how designers approach problems. The site >think>draw>make is a dedicated to visualizations of design processes. See it. [via cool infographics]

What info is hidden in a bar code?

What is in a barcode?

This pretty visualization of bar codes uses information contained in the black stripes to generate Bezier curves (ahem!) that look like a tree, hence the name bar-code plantation 🙂 [via swissmiss]

Also see:

Have any visualizations, graphs or cool charting ideas and want them featured here? Drop a comment.

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Weighted Average in Excel with Percentage Weights

Weighted Average in Excel [Formulas]

Learn how to calculate weighted averages in excel using formulas. In this article we will learn what a weighted average is and how to Excel’s SUMPRODUCT formula to calculate weighted average / weighted mean.

What is weighted average?

Wikipedia defines weighted average as, “The weighted mean is similar to an arithmetic mean …, where instead of each of the data points contributing equally to the final average, some data points contribute more than others.”

Calculating weighted averages in excel is not straight forward as there is no built-in formula. But we can use SUMPRODUCT formula to easily calculate them. Read on to find out how.

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