Mathematics, 13.08.2020 18:01 zfghiiooi5
The set of life spans of an appliance is normally distributed with a mean Mu = 48 months and a standard deviation Sigma = 8 months. What is the life span of an appliance that has a z-score of –3?
3 months
24 months
45 months
72 months
Answers: 2
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