A large set of data for a given measurement has been found to be normally distributed around a mean 'μ' with standard deviation 'σ'. Which of the following limits would have about 95% of the data points around the mean and rest outside?
A. μ - 0.5σ and μ + 0.5σ
B. μ - σ and μ + σ
C. μ - 2σ and μ + 2σ
D. μ - 3σ and μ + 3σ
Answer: Option C
This Question Belongs to Metallurgical Engineering >> Miscellaneous In Metallurgy
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