Among employees of a certain firm, 61% know Java, 58% know Python, and 47% know both languages. What portion of programmers
(a) does not know Java?
(b) knows Java but not Python?
(c) If someone knows Java, what is the probability that he/she knows Python too?
(Round your answer to four decimal places)
Students must show all the work to get full credit. Please list your answers as
(a)..
(b)...
(c)...