# How to Calculate the Harmonic Mean?

The harmonic mean is typically used when an average of rates is desired.

http://www.wikihow.com/Calculate-the-Harmonic-Mean

## How to Do a Pinch Harmonic (false Harmonic or Squeal)?

Learning to recreate sounds on your guitar that you hear in songs, can be difficult. The "squeals" guitars sometimes make is call a "pinch harmonic." Here's wikihow to do a pinch harmonic (false ha...
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http://www.wikihow.com/Do-a-Pinch-Harmonic-%28false-Harmonic-or-Squeal%29

## How to Calculate Mean Deviation About Mean?

There are various ways of calculating mean deviation about mean. Lets have a look...

http://www.wikihow.com/Calculate-Mean-Deviation-About-Mean

## How to Calculate a Mean GPA?

Each semester, you can measure your classroom performance by figuring your grade point average, or GPA. If you want to find your mean, or average, GPA over all your terms, you need to calculate it ...
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http://www.ehow.com/how_8344813_calculate-mean-gpa.html

## How to Calculate the Mean?

It is often necessary to calculate the mean of something in a school or work environment. Knowing how to do so is very important. The mean, or mean average, of a set of numbers is often helpful wit...
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http://www.wikihow.com/Calculate-the-Mean