Answer:
The Greek letter alpha represents the mean.
Alpha is the name of the first letter of the classical Greek alphabet ( alpha ) and represents the beginning. According to the historian and philosopher Plutarco, this is the first letter of the Greek alphabet, which would have been elaborated by Cadmus. ...
Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities.
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