6.96 In a school machine shop, 60% of all machine breakdowns occur on lathes and 15% occur on drill presses. Let E denote the event that the next machine breakdown is on a lathe, and let F denote the event that a drill press is the next machine to break down.

With PsEd 5 .60 and PsFd 5 .15, calculate:

a. PsEC d

b. PsE ø Fd

c. PsE C > F C d