Question

The lifetime (in hours) of a sensor follows a normal distribution with a mean of 800 hours and a standard
deviation of 60 hours. Compute the following for this sensor:

03 Aug 2026
Answer :
Word Count : 475
The lifetime of a sensor is represented by a normal distribution with a mean lifetime of 800 hours and a standard deviation of 60 hours. Let the lifetime of the sensor be represented by the random variable X. Therefore, X ~ N(800, 60²) where the mean (μ) is 800 hours and the standard deviation (σ) is 60 hours. A normal distribution is a continuous probability distribution that is symmetric around its mean value. To calculate probabilities related to the lifetime of the sensor, the given value of X is converted into a standard normal variable _________ _____ _____ _____ ______ ______.
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