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24-03-2024
Mathematics

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(i) Use this model to find the probability that a bulb fails within the first 400 hours. (Round your answer to three decimal places.)
(ii) Use this model to find the probability that a bulb burns for more than 700 hours. (Round your answer to three decimal places.)
(b) What is the median lifetime of these lightbulbs? (Round your answer to one decimal place.)

i Use this model to find the probability that a bulb fails within the first 400 hours Round your answer to three decimal places ii Use this model to find the pr class=

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