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2015-03-07T17:51:52+05:30

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Out of 600 urns, 75 are defective.
Non-defective: 600-75=525
So the probablity of selecting a non-defective urn: P(n)=525/600=7/8
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The rest of ur questions need a lot of effort.bt i got exams got , won't be able to do the big ones.Sorry .:/
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  • Brainly User
2015-03-07T18:00:51+05:30

This Is a Certified Answer

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Total number of urns urns = 600 urns
Total number of defective urns = 75 urns
Total number of non-defective urns = 600 urns-75 urns
                                                  =525 urns
Proability of getting non-defective urns = 525/600
                                                         =7/8 or 0.875


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mark it best plzzzzzzz
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friends???
ok i will be ur frnd