Keyword Analysis & Research: who invented the first hearing aid

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
who invented the first hearing aid	1.2	0.2	8531	1	34
who	1.29	0.5	3059	2	3
invented	0.61	0.2	980	93	8
the	1.49	0.5	1441	24	3
first	1.21	0.3	7952	14	5
hearing	1.71	0.2	6523	50	7
aid	1.32	0.7	7137	61	3

Keyword	CPC	PCC	Volume	Score
who invented the first hearing aid	0.26	0.3	5581	12
when was the first hearing aid invented	0.08	0.1	9200	74
the first hearing aid invented	1.32	0.6	4814	31
electric hearing aid first invented	1.83	0.9	6856	22