What Is Meant By Fermi-Dirac Distribution?

What Is Meant By Fermi-Dirac Distribution? Fermi-Dirac statistics, in quantum mechanics, one of two possible ways in which a system of indistinguishable particles can be distributed among a set of energy states: each of the available discrete states can be occupied by only one particle. What is meant by Fermi function? The Fermi function f(E)