Keyword Analysis & Research: what is the variance formula

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is the variance formula	0.21	0.5	902	6	28
what	1.01	0.8	9351	39	4
is	1.49	0.9	7032	98	2
the	0.73	0.5	4737	13	3
variance	1.28	0.4	9512	46	8
formula	1.73	0.6	7452	39	7

Keyword	CPC	PCC	Volume	Score
what is the variance formula	1.46	0.6	4031	90