2.79 The analysis of shafts for a compressor is summarized by conformance to specifications.Roundness conformsYesNoSurface finish conformsYes33415No129
(a) If a shaft is selected at random, what is the probability that it conforms to surface finish requirements?(b) What is the probability that the selected shaft conforms to surface finish requirements or to roundness requirements?(c) What is the probability that the selected shaft either conforms to surface finish requirements or does not conformto roundness requirements?(d) What is the probability that the selected shaft conforms to both surface finish and roundness requirements?
requirements