\MuThe Greek letter Mu (\Mu) is used in various scientific and mathematical contexts. In physics, it often represents the coefficient of friction or magnetic permeability. In statistics, it denotes the population mean. In engineering, it can symbolize micro- (10^-6) as a prefix.
Coefficient of friction, where F_f is the frictional force and F_n is the normal force.
\Mu = \frac{F_f}{F_n}Magnetic permeability, where B is the magnetic flux density and H is the magnetic field strength.
\Mu = \frac{B}{H}Population mean in statistics, where x_i are the data points and N is the number of data points.
\Mu = \frac{1}{N} \sum_{i=1}^{N} x_i