Keyword Analysis & Research: what is the standard deviation function in r

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is the standard deviation function in r	1.92	1	657	87	44
what	0.35	0.1	8965	11	4
is	1.74	0.7	7389	49	2
the	0.38	0.1	2428	93	3
standard	0.7	0.9	2750	47	8
deviation	1.48	0.5	5278	42	9
function	0.28	0.4	9199	58	8
in	1.78	0.9	355	84	2
r	1.05	0.1	9827	36	1

Keyword	CPC	PCC	Volume	Score
what is the standard deviation function in r	1	0.7	3122	27