[comp.lang.c] Standard Deviation Formula

chuckd@infmx.UUCP (Charles Droukas) (03/22/89)

I am in need of the standard deviation formula and a definition of the 
different symbols.  Also, if anyone has a C program that calculates the
standard deviation, either you can post it or mail it to: 

	pyramid!infmx!chuckd

Thanks in advance,

The Chucker  8^)

gwyn@smoke.BRL.MIL (Doug Gwyn ) (03/22/89)

In article <1187@infmx.UUCP> chuckd@infmx.UUCP (Charles Droukas) writes:
>I am in need of the standard deviation formula ...

WARNING:  The usual textbook formula is not good computationally,
as it involves summing lots of terms each of which is based on the
subtraction of two nearly equal quantities.