Samples of a cast aluminum part are classified on the basis of surface finish (in microinches) and edge finish. The results of 95 parts are summarized as follows: Let A denote the event that a sample has excellent surface finish, and let B denote the event that a sample has excellent edge finish. If a part is selected at random, determine the following probabilities. Round your answers to three decimal places (e.g. 0.987). (a) P(A)= (b) P(B)= (c) P(A)= P(A)= P(B)= P(A)= P(AB)= P(AB)= P(AB)= Statistical Tables and Charts