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.
Metric units of mass. Mass is measured in grams (g), kilograms (kg) and tonnes. These are known as metric units of mass. 1 kg = 1000 g. 1 tonne = 1000 kg. Remember when estimating mass: 100g is about the mass of a small apple.1 kg is the mass of a bag of sugar or a litre of water.etric units of mass. Mass is measured in grams (g), kilograms (kg) and tonnes. These are known as metric units of mass. 1 kg = 1000 g. 1 tonne = 1000 kg. Remember when estimating mass: 100g is about the mass of a small apple.