MathematicsA box contains 13 bulbs, out of which 5 are defective. 3 bulbs are randomly drawn, one by one without replacement, from the box. Find the probability that there are only two defective bulbs.

A box contains 13 bulbs, out of which 5 are defective. 3 bulbs are randomly drawn, one by one without replacement, from the box. Find the probability that there are only two defective bulbs.


  1. A
  2. B
  3. C
  4. D
     

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    Solution:

    X can take the values 0,1,2,3
    P(x=2)
    The probability distribution of X is given is 40143.
    Hence, Option (1) is the correct answer.
     
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