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27.02.2020 •
Mathematics
The lifetime of a lightbulb in a certain application is normally distributed with mean μ = 1500 hours and standard deviation σ = 200 hours. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. What is the probability that a lightbulb will last more than 1800 hours?
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Ответ:
0.000647588
Step-by-step explanation:
The normal probability function formula is:
To find the probability that a lightbulb will last more than 1800 hours, we can plug in x = 1800, μ = 1500, and σ = 200
So the probability that a lightbulb will last more than 1800 hours is 0.000647588
Ответ:
- or -0.008