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Greek letters are used for population parameters. Eg: µ is the population mean English letters are used for sample statistics. Eg: x-bar is the sample mean

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Q: Are Greek letters used for statistics or for parameters?
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What are the different symbol in mathematics?

There are loads of them. The ten numerals: 0, 1, 2, 3, ... 9. Letters of the Roman and Greek alphabets are used to represent variables or parameters in algebra or statistics as well as geometric forms. +, -, * and / are the symbols for basic arithmetic operations but there are symbols for summations, differentiation, integration.


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