# Understanding the Pareto Principle (The 80/20 Rule)

Originally, the Pareto Principle referred to the observation that 80% of Italy’s wealth belonged to only 20% of the population. More generally, the Pareto Principle is the observation (not law) that most things in life are not distributed evenly. It can mean all of the following things: 20% of the input creates 80% of the result20% of the workers produce 80% of the result20% of the customers create 80% of the revenue20% of the bugs cause 80% of the crashes20% of the features cause 80% of the usageAnd on and on… But be careful when using this idea! First, there’s a common misconception that the numbers 20 and 80 must add to 100 — they don’t! 20% of the workers could create 10% of the result. Also recognize that the numbers don’t have to be “20%” and “80%” exactly. Life Isn’t Fair What does it mean when we say “things aren’t distributed evenly”? But that isn’t always the case: The 80/20 rule observes that most things have an unequal distribution. Of course, this ratio can change. Hi!

When Your Plate is Too Full : zen habits By Leo Babauta Do you sometimes (or always) feel like you have too much to do and too little time to do it? Consider an email I got from a student the other day: “… as the semester goes by, the harder it is to keep up with school. The thing is, I know I’d be able to do it if I didn’t have any extracurricular activities. I have a weekend job where I teach youths, a youth group where I currently lead social justice, and I was just asked by someone to lead prayer group. Surprising Secret to Time Management When you draw up to-do lists, set schedules, make appointments, and so forth, chances are you're wasting most of your time. Turn out there's a mathematical law called the Pareto Principle, which says that (in most situations) 80% of the effects come from 20% of the causes. The most famous example of this is the oft-repeated factoid that in sales groups 80% of the revenue comes from 20% of the team. (There are dozens of other examples, ranging from wealth distribution to damage from natural disasters.) The Pareto Principle holds sway for most work efforts that aren't purely rote. Most people obtain 80% of their actual results from 20% of their actual effort.

Create interactive flash tools Q. Who are you anyway? A. Classtools.net is the work of Russel Tarr, Head of History at the International School of Toulouse, France and author of the established website www.activehistory.co.uk. Q. The #1 Secret Astronauts, Samurai, Navy SEALs, and Psychopaths Can Teach You About Good Decision Making We all make a lot of bad decisions. With careers: More than half of teachers quit their jobs within four years. In fact, one study in Philadelphia schools found that a teacher was almost two times more likely to drop out than a student. Achieve More With Less In Life Using 80/20 Principle by Celes on Jan 9, 2009 | ShareThis Email This Post This is part-1 of a 3-part series on achieving more with less in your life using the 80/20 principle.

Questions of Priority By Leo Babauta Of all the things you’re working on right now, or hope to work on soon … which is the single most important? What’s your priority? Now let me ask you these two simple questions: How to Make Good Decisions ... Faster Take a look at this paragraph: Cna yuo raed tihs? I cdn'uolt blveiee taht I cluod aulaclty uesdnatnrd waht I was rdanieg. The phaonemnel pweor of the hmuan mnid, aoccdrnig to a rsereeachr at Cmabrigde Uinervtisy, it dseno't mtaetr in waht oerdr the ltteres in a wrod are, the olny iproamtnt tihng is taht the frsit and lsat ltteers be in the rghit pclae.

Video Games in the Brain: Study Shows How Gaming Impacts Brain Function to Inspire Healthy Behavior “Identifying a direct connection between the stimulation of neural circuits and game play is a key step in unlocking the potential for game-based tools to inspire positive behavior and improve health,” said Brian Knutson, Ph.D., Stanford University. Redwood City, CA (PRWEB) March 19, 2012 In news that could shift how game developers and healthcare professionals harness the power of videogames to do good, HopeLab and Stanford University researchers today announced new data showing that Re-Mission™, a video game about killing cancer in the body, strongly activates brain circuits involved in positive motivation (1). This reward-related activation is associated with a shift in attitudes and emotions that has helped boost players’ adherence to prescribed chemotherapy and antibiotic treatments in a previous study (2). A growing body of data shows that digital games can positively alter players’ attitudes and behavior.

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