What are actually MRP polls and also can they anticipate vote-casting outcomes effectively?

.THERE IS ACTUALLY bit uncertainty concerning the likely winner of Britain’s basic political election on July fourth: with a top of 20 portion aspects in national viewpoint surveys, the Labour Party is very most likely to succeed. However there is unpredictability about the measurements of Labour’s a large number in Britain’s 650-seat Residence of Commons. Some polling firms have released seat predictions using an unique procedure called multi-level regression and post-stratification (MRP).

What are actually these polls– and just how accurate are they?