In an experiment to study the relationship of hypertensionand smoking habits, the following data arecollected for 180 individuals:Moderate HeavyNonsmokers Smokers SmokersH 21 36 30NH 48 26 19where H and NH in the table stand for Hypertensionand Nonhypertension, respectively. If one of these individualsis selected at random, find the probability thatthe person is(a) experiencing hypertension, given that the person isa heavy smoker;(b) a nonsmoker, given that the person is experiencingno hypertension.