What is the 'Normal Distribution'. The normal distribution, also known as the Gaussian or standard normal distribution, is the probability distribution that plots all of its values in a symmetrical fashion, and most of the results are situated around the probability's mean. Values are equally likely to plot either above or below the mean.
Definition of a Mg. A milligram (mg) is a metric system unit that represents a thousandth of a gram. Because of its larger size, a mg is a more commonly used measurement than a mcg. One thousandth of a mg is one mcg, and 1,000 mcg equal one mg.
gram - a metric unit of weight equal to one thousandth of a kilogram. g, gm, gramme. metric weight unit, weight unit - a decimal unit of weight based on the gram. obolus - a Greek unit of weight equal to one tenth of a gram. carat - a unit of weight for precious stones = 200 mg. dag, decagram, dekagram, dkg - 10 grams.