SOLUTION: Of the coffee makers sold in a appliance store, 3.0% have either a faulty switch or a defective cord, 2.4% have a faulty switch, and 0.3% have both defects. What percent of the cof

Question 466071: Of the coffee makers sold in a appliance store, 3.0% have either a faulty switch or a defective cord, 2.4% have a faulty switch, and 0.3% have both defects. What percent of the coffee makers will have a defective cord?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Of the coffee makers sold in a appliance store, 3.0% have either a faulty switch or a defective cord, 2.4% have a faulty switch, and 0.3% have both defects. What percent of the coffee makers will have a defective cord?
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P(a or b) = P(a)+P(b)-P(a and b)
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0.03 = P(dc) + 0.024 - 0.003
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P(dc) = 0.03-0.024+0.003
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P(dc) = 0.006 + 0.003
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P(defective cord) = 0.009 or 0.9%
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Cheers,
Stan H.
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