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Mathematics, 24.05.2021 14:00 jayy1474
The amount of time a certain brand of light bulb lasts is normally distribued with a
nean of 1900 hours and a standard deviation of 45 hours. Out of 670 freshly installed
ight bulbs in a new large building, how many would be expected to last more than
1890 hours, to the nearest whole number?
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Answers: 3
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Mathematics, 21.06.2019 20:00
Ialready asked this but i never got an answer. will give a high rating and perhaps brainliest. choose the linear inequality that describes the graph. the gray area represents the shaded region. y β€ β4x β 2 y > β4x β 2 y β₯ β4x β 2 y < 4x β 2
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The amount of time a certain brand of light bulb lasts is normally distribued with a
nean of 1900 h...
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