(Choose 1 answer)
In a factory three machines produce the same product. Machine A produces 20% of the outp 30%, and machine C, 50%. The proportion of defective items produced by these follows: ma machine B: 0.05, machine C: 0.03. An item is selected at random. Find the probability that it
A. 0.009
B. 0.017
C. 0.032
D. 0.419
E. None of the other choices is correct
E39
