Normal Distribution.  It's facinating to see the sum of all squared differences from the mean is least compared to all other values (a). Phi represents a standard normal distribution function (the mean is zero and standard deviation is one) so value b from a normal distribution is translated to a Z distribution value through Z = (b - mu) / sigma. View the Java source code used to create this simulation. apparel mens tshirt ($15.00) womens tshirt ($15.00) sweatshirt ($25.00) sportshirt ($25.00) size Adult-3XL Adult-2XL Adult-XL Adult-L Adult-M Adult-S Youth-XL Youth-L Youth-M Youth-S Youth-XS placement front back quote (free!)   (quote to be emailed) Scott Adams - Creativity is allowing... Sophia Kovalevskaya - It is impossible... William James - The union of... Leonardo da Vinci - Whoever despises the... Leonardo da Vinci - ...for no human... Leonardo da Vinci - Mechanics is the... Johannes Kepler - Geometria est... Johannes Kepler - Where there... 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