Machine–A produces 50% of the total output and Machine-B produces 75% of the total output. An average of nine units out of a thousand goods manufactured by Machine-A and one unit of 250 units produced by Machine-B prove to be defective. What is the probability that a unit chosen at random from the total daily output of the factory is defective?	Choose the correct option:	A) 0.06	B) 0.006	C) 0.07	D) 0.08	E) 0.09
Suppose machine A produce 1000 units   total defective = 9   Machine 0.006 then produces=1500 units   total defective=6   probability=15/2500= 
<gadget id="calculator">15/2500</gadget>
<output>3/500 = around 0.006</output>
0.006   Answer : 0.006
<result>B</result>
Machine–A produces 50% of the total output and Machine-B produces 75% of the total output. An average of nine units out of a thousand goods manufactured by Machine-A and one unit of 250 units produced by Machine-B prove to be defective. What is the probability that a unit chosen at random from the total daily output of the factory is defective?