Question 554942: If 3% of all calculators are defective, find the mean, variance, and standard deviation of a lot of 100 calculators. Round your answers to two decimal places, if necessary.
I hope someone can help me out please!
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! If 3% of all calculators are defective, find the mean, variance, and standard deviation of a lot of 100 calculators. Round your answers to two decimal places, if necessary.
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97% are not defective
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Not-Defective DATA:
mean = np = 100*0.97 = 97
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variance = npq = 100*0.97*0.03 = 2.91
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std = sqrt(2.91) = 1.71
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Cheers,
Stan H.
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