The amount of time a certain brand of light bulb lasts is normally distributed with a
mean of...
Mathematics, 11.03.2020 00:12 kat9490
The amount of time a certain brand of light bulb lasts is normally distributed with a
mean of 2000 hours and a standard deviation of 55 hours. What percentage light bulbs last less than 2080 hours, to the nearest tenth?
Answers: 2
Mathematics, 21.06.2019 17:00, mckennayoshz
There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y
Answers: 1
Mathematics, 22.06.2019 00:00, karinagonzale80
If 7x=9y, y/z = 7/5 , then x/z = (a) 2/7 (b) 7/9 (c) 9/5 (d) 9/7 (e) 5/9
Answers: 1
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