As an electrical engineer, you have designed a new efficient light bulb. In order to predict its life expectancy, you conducted a series of experiments on 135 of these light bulbs and gathered the data shown in the table. Plot the data and calculate the mean and standard deviation. Number of Hours the Light Bulb Functioned before Failing Frequency 700 15 800 20 900 34 1000 28 1100 22 1200 16
As an electrical engineer, you have designed a new efficient light bulb. In order to predict its life expectancy, you conducted a series of experiments on 135 of these light bulbs and gathered the data shown in the table. Plot the data and calculate the mean and standard deviation. Number of Hours the Light Bulb Functioned before Failing Frequency 700 15 800 20 900 34 1000 28 1100 22 1200 16
Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)
5th Edition
ISBN:9781305084766
Author:Saeed Moaveni
Publisher:Saeed Moaveni
Chapter19: Probability And Statistics In Engineering
Section: Chapter Questions
Problem 22P
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For Problem 19.22 , determine the probability (assuming normal distribution) that a light bulb would have a life expectancy less than 900 hours.
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