.THERE IS ACTUALLY LITTLE question regarding the probably victor of Britain's standard vote-casting on July fourth: with a lead of 20 amount points in national point of view polls, the Work Gathering is actually very most likely to win. But there is uncertainty regarding the size of Labour's majority in Britain's 650-seat Residence of Commons. Some ballot agencies have actually published seat prophecies using a novel technique called multi-level regression and post-stratification (MRP). What are these polls-- and exactly how precise are they?