Opinion polls

Can we trust opinion polls? Find out what the mathematics of polls tells us.

Read more: A survey needs to involve how many people before I’m convinced?

Latest videos

Academy celebrates 65 years

1:36
Video: Academy celebrates 65 years

History of the periodic table

1:37
Video: History of the periodic table

National honour for astrophysicist

1:19
Video: National honour for astrophysicist