• Suppose an assembly plant receives its voltage regulators from three different suppliers, 60% from 1^st supplier, 30% from 2^nd supplier and 10% from the 3^rd supplier. Also, suppose that 95% of the voltage regulators received from 1^st supplier, 80% from 2^nd supplier and 65% from 3^rd supplier perform according to specifications.
• What is the probability that a randomly received voltage regulator will perform according to the specifications?
• If a randomly received voltage regulator is found not performing as per specifications, what is the probability that it is received from 1^st supplier?