Greek Symbols
A modicum of Greek facilitates the study of statistics. The Greek
letters are pronounced as follows: Alpha as the initial a in arcane, beta as b
in bone, gamma as g in gate, delta as d in double, epsilon as e in fret (short
e), zeta as z in zeal, eta as e in echo (long e), theta as t in target, iota as
i in pit, kappa as k in king, lambda as l in lasso, mu as m in mouse, nu as n
in never, xi as x in wax, omicron as o in not (short o), pi as p in park, rho
as r in riddle, sigma as s in house, tau as t in tender, upsilon as y in
yttrium, phi as f in flag, chi as ch in loch, psi as ps in lapse, and omega as
o in fortune (long o). The lowercase sigma has two forms, and
.
The second form is used at the end of words. Greek alphabet consists of 25
characters:
In statistics, the most often used Greek characters are the lowercase sigmas. The squared character sigma denotes variance; its squared end form denotes the standard variance.