There are many different bases for standardisation - even if you only consider the Gaussian (Normal) distribution.
If a variable X has a Gaussian distribution, then the corresponding Standard Normal deviate, Z, is obtained from X by subtracting the mean of X and then dividing the result by the standard deviation of X. The variable, Z, more commonly known as the Z-score, has a Gaussian distribution with mean 0 and standard deviation 1.
But, if X is an IQ score, for example, different measures of the X variable are used so that the resulting variable has mean 100 and standard deviation 15.
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100 is meant to be the average. Many IQ tests set out to standardise the tests in such a way as to make 100 the average.
100 is meant to be the average. Many IQ tests set out to standardise the tests in such a way as to make 100 the average.
A reason to limit the amount of data any field contains can vary greatly, but common reason is to standardise the data. One of the principle behind databases is to create collections of data that can be organized into standard format to make it easier to create information for reporting or analysis.
The face value of 3 is 3: the value of 3 is 3000The face value of 5 is 5: the value of 5 is 500The face value of 3 is 3: the value of 3 is 3000The face value of 5 is 5: the value of 5 is 500The face value of 3 is 3: the value of 3 is 3000The face value of 5 is 5: the value of 5 is 500The face value of 3 is 3: the value of 3 is 3000The face value of 5 is 5: the value of 5 is 500
CMH is a unit of flow rate (m3/hr or cubic metres per hour) A BTU is a British Thermal Unit, a unit of energy that is equal to around 1055 joules. You cant convert the two as they are a measure of different things, but changing BTU (or Btu) to joules will help standardise the calculations.