Mathematics, 18.02.2021 19:20 emmalucilleblaha1995
A light bulb manufacturer claims that the lifetime of the bulbs is normally distributed with a mean of 5000 hours and a standard deviation of 250 hours. If 20000 bulbs are produced on a particular day, what percentage of the bulbs will have a lifetime of between 4750 and 5500 hours?
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 19:30
[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible
Answers: 3
Mathematics, 22.06.2019 00:10
A50-foot ladder is leaning against a vertical wall. if the base of the ladder is 45 feet from the base of the wall, find the angle the bottling of the ladder makes with the ground.
Answers: 1
You know the right answer?
A light bulb manufacturer claims that the lifetime of the bulbs is normally distributed with a mean...
Questions
History, 15.11.2019 18:31
Social Studies, 15.11.2019 18:31
English, 15.11.2019 18:31
Chemistry, 15.11.2019 18:31
Mathematics, 15.11.2019 18:31
Mathematics, 15.11.2019 18:31
