The average life of a lightbulb is 2500 h, with a standard deviation of 200 h. Suppose that 10,000 bulbs are purchased to equip
a new building. Assume that the lives are normally distributed. How many of the light bulbs would be expected to burn out after just 1800 h?
1 answer:
0 lightbulbs would be expected to burn out in 1800 hours
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Answer:
11...................
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Explanation:
2x1 = 2
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Step-by-step explanation:
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I belive the answer is 21.42% :)
Answer: £13026.90
Step-by-step explanation:
1.5% of £15060 = 225.90
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hope this helps ;)
