Question 242072: Of the coffee makers sold in an appliance store, 5.0% have either a faulty switch or a defective cord, 1.9% have a faulty switch, and 0.4% have both defects. What is the probability that a coffee maker will have a defective cord? Express the answer as a percentage.
a. 2.3%
b.3.5%
c. 5.4%
d. 5.0%
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Of the coffee makers sold in an appliance store, 5.0% have either a faulty switch or a defective cord,
1.9% have a faulty switch, and
0.4% have both defects.
What is the probability that a coffee maker will have a defective cord? Express the answer as a percentage.
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P(fs OR dc) = P(fs)+P(dc) - P(fs AND dc)
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0.05 = 0.019 + P(dc) - 0.004
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P(dc) = 0.05 -0.015
P(dc) = 0.035
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Cheers,
Stan H.
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a. 2.3%
b.3.5%
c. 5.4%
d. 5.0%
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