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Suppose there are 2 defectives among 5

  1. Oct 21, 2012 #1
    suppose there are 2 defectives among 5....

    suppose there are 2 defectives among 5, test one at a time until you find the 2nd defective, find:

    1.you need at most 3 tests
    2.given the 2nd defective found at 3rd test, find the p that you find the 1st defective at 1st test.

    Thanks.
     
  2. jcsd
  3. Oct 21, 2012 #2

    Ray Vickson

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    Re: suppose there are 2 defectives among 5....

    Forum rules require you to show your work. Tell us what you have done so far, and where you are stuck.

    RGV
     
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