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Readme [11.4K]
2 years ago
12

An electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed with mean equa

l to 800 hours and a standard deviations of 40 hours. Find the probability that, a random sample of 16 bulbs will have an average life of i). Less that 775 hours. Ii) between 775 and 825 hours.
SAT
1 answer:
den301095 [7]2 years ago
5 0

Answer:

ion know

Explanation:

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