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Mean of a normal probability distribution

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Reference no: EM132844192

The mean of a normal probability distribution is 480; the standard deviation is 140.

a. Lower Value: μ ± 1σ of the observations lie between what two values?

Upper Value:

b. μ ± 2σ of the observations lie between what two values?

Lower Value:

Upper Value:

c. μ ± 3σ of the observations lie between what two values?

Lower Value:

Upper Value:

Reference no: EM132844192

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