Gangatharan G posted an Question
December 02, 2021 • 21:19 pm 30 points
  • IIT JAM
  • Mathematical Statistics (MS)

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, w

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 best-answer

    Hi Gangatharan,

    Kindly refer to the below image for your answer.

    45.jpeg
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