Let S = {1,2,3,4}and ABC = = = {1,2 , 1,3 , 1,4 . } { } { } Assume the outcomes are equiprobable. Are A B and C , , independent events?
b) In a pharmaceutical industry, machines A, B and C manufacture 25, 35 and 40 percent of
the total packaging, respectively. Of their outputs, 5, 4, 2 percent, respectively, are
defective blister packs. A pack is selected at random and found to be defective. What is
the probability that the pack came from machine A? Repeat the same for machine B and