Mathematics, 25.05.2021 23:40 niquermonroeee
May 25, 1:27:47 PM
The amount of time a certain brand of light bulb lasts is normally distributed
with a mean of 1400 hours and a standard deviation of 50 hours. Using the
empirical rule, determine what interval of hours represents the lifespan of the
middle 68% of light bulbs.
Answers: 1
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Uestion 1(multiple choice worth 5 points) (05.02)alex wants to paint one side of his skateboard ramp with glow-in-the-dark paint, but he needs to know how much area he is painting. calculate the area of the isosceles trapezoid. isosceles trapezoid with top base 12 feet, bottom base of 18 feet, and height of 6 feet. 72 ft2 84 ft2 90 ft2 108 ft2
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May 25, 1:27:47 PM
The amount of time a certain brand of light bulb lasts is normally distributed
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