how is keyword difficulty calculated

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
how is keyword difficulty calculated	0.73	0.9	9045	34	36
how	0.96	0.2	8057	31	3
is	0.55	0.6	9736	94	2
keyword	1.77	1	4183	2	7
difficulty	0.07	0.8	5835	16	10
calculated	1.56	0.1	6513	42	10

Keyword	CPC	PCC	Volume	Score
how is keyword difficulty calculated	0.54	0.6	7673	99
how to check keyword difficulty	0.52	0.5	3343	78
what is keyword difficulty	0.98	0.8	9259	93
what's true about keyword difficulty	0.46	0.1	3374	34
check keyword difficulty tool	1.95	0.2	4753	70
keyword difficulty score meaning	0.76	0.1	2642	12
keyword suggestion with keyword difficulty	1.39	0.9	2079	24
best keyword difficulty software	1.55	0.8	4969	12
free keyword difficulty tool	1.89	0.6	8104	34
keyword difficulty checker free	0.82	0.9	9196	26
how to check for keywords	0.07	0.6	7988	90
free keyword difficulty checker tool	0.72	1	6777	14
how to do keyword analysis	0.5	0.4	8954	67
how to find keyword	1.17	0.7	2429	33
keywp - keyword difficulty checker	1.1	0.8	6508	47
how to understand the keyword	0.21	0.1	597	84
insufficient number of keywords	0.97	0.3	8804	12
keywords in word problems	0.13	0.4	1070	76
keywords in problem solving	1.96	0.3	9158	85