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.
1 The unit of mass is the kilogram. 2  A kilogram (kg) weighs the same as a litre of water (at normal temperature, and pressure). 3  1 gram (g) is the weight of 1 millilitre of water at 0 degrees Celsius. 4  The metric tonne is 1000 kilograms or a million grams.