.THERE IS ACTUALLY bit doubt about the probably winner of Britain's overall election on July 4th: with a lead of 20 percent factors in national point of view surveys, the Labour Gathering is extremely probably to win. Yet there is actually anxiety concerning the measurements of Labour's majority in Britain's 650-seat Residence of Commons. Some ballot agencies have published seat prophecies using a novel method referred to as multi-level regression and post-stratification (MRP). What are actually these surveys-- as well as exactly how precise are they?