.THERE IS ACTUALLY bit uncertainty concerning the probably victor of Britain's standard political election on July fourth: along with a lead of 20 portion aspects in nationwide viewpoint surveys, the Labour Gathering is actually incredibly probably to gain. Yet there is anxiety regarding the dimension of Work's large number in Britain's 650-seat Residence of Commons. Some polling agencies have released chair predictions using a novel procedure known as multi-level regression and post-stratification (MRP). What are actually these surveys-- and just how precise are they?