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How To: Group quantitative data into classes in MS Excel

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 20th installment in his "Excel Statistics" series of free video lessons, you'll learn how to take raw quantitative (numerical) data and figure out how to group it into classes so that you can have categories an...

How To: Build confidence intervals given the sigma in MS Excel

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 81st installment in his "Excel Statistics" series of free video lessons, you'll learn how to construct confidence intervals when the sigma (population standard deviation) is known. See how the CONFIDENCE and NO...

How To: Work with skew and histograms in Microsoft Excel

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 23rd installment in his "Excel Statistics" series of free video lessons, you'll learn how to work with skew in histograms for quantitative Data. Learn how to skew left (negative) and skew right (positive) with ...

How To: Create a relative frequency distribution in MS Excel

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 14th installment in his "Excel Statistics" series of free video lessons, you'll learn how to create relative & percent & frequency distributions with formulas for categorical data. See, too, how to create a per...

How To: Make calculations in Excel with formulas & references

If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 2nd installment in his "Excel Statistics" series of free video lessons, you'll learn how to make calculations in Excel using formulas and cell references. Learn about the different Excel Math operators and func...

How To: Write a good argumentative essay: first argument

This video describes the art of writing argumentative essays. In other words it narrates how to improve arguments of an essay. It starts with an analysis of classic examples. The speaker begins by criticizing the style of paragraph and how to improve the suggestions. He explains how to omit errors and form your arguments in commanding manner. Finally, he says how to come a conclusion by adding solid evidence. At the end of course he will show you how to transfer a old matter into a classic ex...

How To: Understand electrotonic & action potentials in a cell

Maybe you learn best by seeing things worked out in front of you and what you just saw in class today about Electronic action potential of neurons didn't quite sink in. Not to mention the test that you have coming up this week is going to be an in-depth analysis of your knowledge on this material. Let Khanacademy be your guide! For less than half the time it takes to sit through the Professors class, he explains the function of Neurons, how action potential works and sends you on your way to ...

How To: Generate your own chess candidate move orders

These two videos focus on analyzing chess positions, and generating candidate move orders from the position without moving the pieces or using computer analysis. The goal is to improve the ability to generate lines and variations mentally during a game, and to try to come up with a move that either maintains equality on the board, or paves the way for a slight positional edge.

How To: Hang a flat screen television

As you might very well have discovered if you're here looking at this video, mounting a flat screen television is quite possibly the hardest part of the set up process. You need to get your mount securely to the wall and make sure it's in a position you like. Then there's the matter of getting the tv up there. This video will show you how to hang a flat screen.

How To: Remove fringe from monsters in Photoshop CS3

This image editing software tutorial teaches you how to remove fringe left over from masking on a monster image in Photoshop CS3. Discover three distinctive ways to remove the ugly fringe that can ruin any good masking project. These Photoshop techniques are specially designed for working with detailed hair (like a monsther!), in Photoshop masking projects.

How To: Build an electromagnet

This video demonstrates the relationship between electricity and magnetism and shows how to construct an electromagnet using a 4 inch iron nail, 5 meters of copper wire and a 1.5 volt AA battery. Electromagnetism was discovered by the Danish scientist Oersted. Electromagnetism is the science behind electric motors, solenoids, speakers and electromagnets.

How To: The Easiest Way to Discover New Music on Your Phone

Resources for finding new music are at our disposal in all corners of the internet; the only problem is deciding which one is the best for you. Spotify, Pandora, and Rdio all have options to discover new music on your smartphone, but they tend to expose mostly established artists, making the process of finding lesser-known but good music a game of trial and error.

How To: Why You Learn More Watching Comedy Over Mainstream News

While CNN, FOX News, and MSNBC are valuable sources of information for what's going on in the world today, they may not be the best news stations to watch if you actually want to learn something. They, along with local news stations, are great at grabbing your attention, but if you truly want to learn something about recent events, you're tuning into the wrong channel.

News: How Researchers Could Use Bacteria to Determine Time of Death

When a dead body is discovered, finding out when the person died is just as important as finding out how the person died. Determining the time of death has always involved lots of complicated scientific detective work and less-than-reliable methods. However, a study by Nathan H. Lents, a molecular biologist at the John Jay College of Criminal Justice in New York, is the first of its kind to show how microbes colonize a body's ears and nose after death.

How To: Social Engineering - Total Guide

Good day to everyone, today I will present some basic and advanced concepts that targets sophisticated attacks on the social basis, also I will write about some steps that can prevent this attacks from occuring, basically we will examine Social Engineering from the angle of attacker and victim, some people who are interested in security and work for middle-sized companys can learn and use something interesting from this post.

How To: Use Google Buzz on your Android phone

If you have an Android phone it's easy to use Google Buzz. One of the salient advantages of a Google Android smartphone over, say, an Apple iPhone, is the inherent extendibility of the open-source Android mobile OS. There are a seemingly infinite number of settings to tweak and advanced features to discover and use. This free video tutorial, in particular, discusses how to access, read and use the Google Buzz social networking/microblogging tool.