An average light bulb manufactured by the acme corporation lasts 300 days with a standard deviation of 50 days. assuming that bulb life is normally distributed, what is the probability that an acme light bulb will last at most 365 days?
Given a mean score of 300 days and a standard deviation of 50 days, we want to find the cumulative probability that bulb life is less than or equal to 365 days. Thus, we know the following:
The value of the normal random variable is 365 days.
