the mind > will > free will > choice or choosing > expression of choice by some approved method > 			[noun]		 > opinion poll > conducting > one who (3)		
an individual who or organization which conducts an opinion poll, a pollster; (also, in early use) a poll-watcher.
A person who conducts or analyses opinion polls. Also: an analyst of voting patterns generally.
a person or organization engaged in compiling opinion polls.