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1 January, 17:45

Thirteen of the 100 digital recorders in an inventory are known to be defective. What is the probability you randomly select an item that is not defective?

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  1. 1 January, 18:27
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    Subtract 13 from 100. That should give you 87. Divide that by 100. Since it doesn't reduce down, the answer should be 87/100.

    This is all assuming that you're only selecting ONE recorder and will put the recorder back once finished selecting it.
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