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Two parts A and B of a machine is manufactured by a firm. Out of 100 A’s 12 are likely to be defective and Out of 100 B’s 8 are likely to be defective. The probability that a machine manufactured by the firm is free from any defect is:​
  • a)
    619/625
  • b)
    119/625
  • c)
    6/625
  • d)
    506/625
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Two parts A and B of a machine is manufactured by a firm. Out of 100 A...
 probability of getting good machine part from A = 88/100
probability of getting good machine part from B = 92/100
P(correction) = (88/100)(92/100)
= 506/625
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Community Answer
Two parts A and B of a machine is manufactured by a firm. Out of 100 A...
It's just case of combined probability as the probability of getting good machine part form A= 88/100 and from B =92/100 and by combining each ie 88/100*92/100=8096/10000 or 0.8096 or by simplifying we get 506/625...
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Two parts A and B of a machine is manufactured by a firm. Out of 100 A’s 12 are likely to be defective and Out of 100 B’s 8 are likely to be defective. The probability that a machine manufactured by the firm is free from any defect is:​a)619/625b)119/625c)6/625d)506/625Correct answer is option 'D'. Can you explain this answer?
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