Talk:Share of the audience

Please expand
I don't understand mathematical  formulae. I've alwas been curious to know how those who  provide the stats actually  know what  people are watching. I consider this to  be an imortant expansion  to  this artice )  referenced of course. Kudpung กุดผึ้ง (talk) 02:44, 7 December 2013 (UTC)