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29 March, 16:36

In a box of 25 switches, 3 are defective. what is the probability of randomly selecting a switch that is not defective? enter your answer as a percentage; example: 33%

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  1. 29 March, 16:54
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    Not defective : 25 - 3 = 22

    probability of not defective : 22/25

    22/25 * 100% = 88%
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