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.
Metric Measurement - Weight. When you are done, try the Metric Weight Quiz. The metric measure units of weight are based on the gram. The milligram (mg) is the smallest metric measure of weight and equals 1/1000 of a gram. The centigram (cg) is the next largest unit of weight and equals 1/100 of a gram. The decigram (dg) is the next largest unit of weight and equals 1/10 of a gram.