Question
4. A certain brand of flood lamps has a lifetime that is normally distributed with a mean of 3,750 hours and a standard deviation of
4. A certain brand of flood lamps has a lifetime that is normally distributed with a mean
of 3,750 hours and a standard deviation of 300 hours. What proportion of these lamps will last for more than 4,000 hours?
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Multiple Time Scale Dynamics
Authors: Christian Kuehn
1st Edition
3319123165, 9783319123165
