Dee Depung: A percentage of people are surveyed, then the companies just multiply the numbers. So, and this probably isn't possible, say the complete viewing audience is 100 million, and the companies survey 1 million people, they have a 1% of the full audience. If then 2% of that million, surveyed say that they watched a particular programme, they can just multiply it by the relevant numbers to get their viewing figures....Show more
Jodie Capella: Tv uses neilson ratings and radio uses something similar.
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