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A company has three plants at which it p...

A company has three plants at which it produces a certain item. 30% are produced at plant A, 50% at plant B and remaining at plant C. Suppose that 1% , 4% and 3% of the items produced at plants A, B and C respectively are defective. If an item is selected at random from all of those produced, what is the probability that item was produced at plant B is defective ?

A

0.5

B

0.2

C

0.02

D

0.04

Text Solution

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The correct Answer is:
C
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KUMAR PRAKASHAN-PROBABILITY-Multiple Choice Questions (MCQs)
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  5. Let E(1), E(2), E(3), ....,E(n) be independent events with respective ...

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  7. If A and B are two independent events such that P(A)= (1)/(2), P(B)= (...

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  8. A small town has one fire engine and one ambulance available for emerg...

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  9. If A and B are two independent events such that P(A cap B)= (3)/(25) ...

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  10. A and B are independent events P(A cap B)= 0.5 and P(A)= 0.2 then P(B)...

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  11. A purse contains 6 Silver coins and 3 Gold coins. Another purse contai...

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  12. A fair coin is tossed n times, then what is the probability that H (He...

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  13. A building has two lifts. L(1) and L(2) are events when lifts are work...

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  14. Suppose A and B are two persons. The probability that A does the job i...

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  15. Three machines A, B and C produce respectively 30%, 50% and 20% of the...

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  16. Let X be the random variable with following probability distribution. ...

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  17. If P(A cap B)= (1)/(12) and P(A' cap B')= (1)/(2) then P(A) + P(B) = ....

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  18. Probability of an event that newly purchase mobile and laptop will be ...

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  19. A problem in mathematics is given to three students A, B, C and their ...

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  20. Probability of an event that 10 persons A(1), A(2), ..., A(10) with ag...

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