A certain facility produces drill bits which are made of eit…
A certain facility produces drill bits which are made of either steel, cobalt, or diamond. Suppose that 50% of the drill bits are steel, 40% are cobalt, and 10% are diamond. Further, suppose that 10% of the steel drill bits fail, 5% of the cobalt drill bits fail, and 1% of the diamond drill bits fail. Given that a drill bit failed, what is the probability that it was not steel? Provide your work in the box for Question 1 at the top.