Category:Data Coding
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This category contains results about Data Coding.
Definitions specific to this category can be found in Definitions/Data Coding.
Data coding is a technique for simplifying manual arithmetic.
It is also useful for reducing rounding errors when using a computer.
When calculating an mean or standard deviation, the following two rules can be used:
- $(1): \quad$ If each datum is multiplied by a constant $b$, then the mean and standard deviation are each multiplied by constant $b$
- $(2): \quad$ If a constant $a$ is added to each datum, then the mean is increased by $a$ but the standard deviation is not affected.