.THERE IS LITTLE question concerning the most likely winner of Britain's standard vote-casting on July 4th: along with a top of twenty percent points in nationwide viewpoint surveys, the Work Gathering is remarkably most likely to gain. But there is actually uncertainty concerning the dimension of Labour's majority in Britain's 650-seat Property of Commons. Some ballot firms have posted seat predictions utilizing a novel procedure called multi-level regression and also post-stratification (MRP). What are these polls-- and just how precise are they?