1.

A company produces steel pipes in three plants with daily production volumes of 500, 1000 and 2000 units respectively. It is known that the fractions of defective outputs produced by the three plants are 0.005, 0.008 and 0.010 respectively. If a pipe selected from a day's total production is found to be defective, find the probability that it came from the first plant.

Answer»


ANSWER :`= 5/61`


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