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07-06-2016
Mathematics

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Out of 190 CD's tested, 26 are defective. Estimate the number of CD's in a batch of 1000. PLZZZZZZ HELP MEEEE!!!!

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μnibble μnibble

07-06-2016

26/190 ≈ 30/200 = 3/20 3/20 • 1000 = 3000/20 = 300/2 = 150 CDs

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