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11 June, 16:32

in a batch of 280 water purifiers, 12 were found to be defective. what is the probability that a water purifier chosen at random will be defective.

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  1. 11 June, 17:08
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    4.286%

    Step-by-step explanation:

    12/280=0.04286*100=4.286/100 or 4.286%
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