The notion of normal distribution, being one of the most important distributions in probability theory, has been extended far beyond the standard framework of the univariate (that is one-dimensional) case (Case 1).
The metric unit of weight (or any other force such as that of a  stretched spring, or a bat striking a ball, or a locomotive pulling  a train) is called the newton.   Neâ¦wton is the unit of weight (exactly of force) in the SI; in base  units is kg.m/s2.
The metric ton (also known as tonne) equals to 1000 kilograms and used in the metric system. The abbreviation is T. If you are trading internationally, you must know what type of ton as a weight unit is used in that country to avoid the surprises. Pound is a unit of mass in the imperial and U.S. customary measurement systems. International avoirdupois pound is defined as 0.45359237 kilograms.