A company that produces fine crystal knows from experience that 15 of its goblets have cosmetic flaws and must be classified as seconds Round your answers to three decimal places LAUSE SALT a Among seven randomly selected goblets how likely is it that only one is a second b Among seven randomly selected goblets what is the probability that at least two are seconds c If goblets are examined one by one what is the probability that at most five must be selected to find four that are not seconds You may need to use the appropriate table in the Appendix of Tables to answer this question