Homonym: μ (Micro)
The symbol "μ" (mu) is the 12th letter of the Greek alphabet. In mathematics and science, it often represents the prefix "micro," which denotes one-millionth of a unit. For example, one micrometer (μm) is one-millionth of a meter.
In statistics, "μ" is commonly used to symbolize the population mean, which is the average value of a set of data. This concept is essential in fields like economics, psychology, and biology for analyzing and interpreting data trends.