.THERE IS minimal uncertainty regarding the most likely winner of Britain's standard election on July fourth: along with a top of 20 amount points in national opinion polls, the Labour Gathering is actually extremely very likely to succeed. But there is uncertainty about the dimension of Work's a large number in Britain's 650-seat House of Commons. Some ballot firms have released chair predictions using an unique strategy known as multi-level regression and post-stratification (MRP). What are actually these surveys-- as well as how exact are they?