Gangatharan g Asked a Question
December 2, 2021 3:49 pmpts 30 pts
Light bulbs are installed successively into a socket. If we assume that each light bulb has a mean life of 2 months with a standard deviation on 0.25 months, what is the probability that 40 bulbs last at least 7 years?
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  • Eduncle thankyou

    Hi Gangatharan,

    Kindly refer to the below image for your answer.

    • 45.jpeg
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