Question 614926: A sample of 130 firecrackers contained 7 duds. How many duds would you expect in a sample of 2600 firecrackers? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A sample of 130 firecrackers contained 7 duds. How many duds would you expect in a sample of 2600 firecrackers?
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Use a proportion:
x/2600 = 7/130
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x = 2600(7/130) = 140
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Cheers,
Stan H.
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