Machine–X produces 50% of the total output and Machine-Y produces 75% of the total output. An average of 16 units out of a thousand goods manufactured by Machine-X and 3 unit of 500 units produced by Machine-X prove to be defective. What is the probability that a unit chosen at random from the total daily output of the factory is defective? Answers:
A) 0.01
B) 0.02
C) 0.04
D) 0.06
E) 0.08
Suppose machine X produce 1000 units   total defective = 16   Machine Y then produces=1500 units   total defective=9   probability=25/2500= 
<gadget id="calculator">25/2500</gadget>
<output>1/100 = around 0.01</output>
0.01   0.01nswer : 0.01
<result>A</result>
Machine–X produces 50% of the total output and Machine-Y produces 75% of the total output. An average of 16 units out of a thousand goods manufactured by Machine-X and 3 unit of 500 units produced by Machine-X prove to be defective. What is the probability that a unit chosen at random from the total daily output of the factory is defective?