Ever wondered how opinion polls work? As election fever grows - so does the importance of opinion polls which today are an essential part of modern political life. Political strategists, voters and the media all lap up the data generated - but where does it come from? How many people do you need to interview to get trustworthy data? and just how easy is it to predict the future based on the opinions of the present?

Ever wondered how opinion polls work? As election fever grows - so does the importance of opinion polls which today are an essential part of modern political life. Political strategists, voters and the media all lap up the data generated - but where does it come from? How many people do you need to interview to get trustworthy data? and just how easy is it to predict the future based on the opinions of the present?

How do opinion polls actually predict whose going to win an election?

Learn how the UK electoral system makes predicting elections especially difficult.

How do opinion polls actually predict whose going to win an election?

Learn how the UK electoral system makes predicting elections especially difficult.

Self explanatory as it seems, there's more to Exit Polls than the name suggests. Learn what makes them a valuable tool for voters, politicians and the media alike. Said to be so accurate and influential they can predict future results and even help to avoid fraud.

Self explanatory as it seems, there's more to Exit Polls than the name suggests. Learn what makes them a valuable tool for voters, politicians and the media alike. Said to be so accurate and influential they can predict future results and even help to avoid fraud.

Who carried out the first opinion poll and why are they so popular?

This light-hearted and revealing clip examines the real purpose of polling voters and how you ensure the accuracy of a sample...

Who carried out the first opinion poll and why are they so popular?

This light-hearted and revealing clip examines the real purpose of polling voters and how you ensure the accuracy of a sample...