The lifetime of a 2-volt non-rechargeable battery in constant use has a Normaldistribution, with a mean of 516 hours and a standard deviation of 20 hours. Eightypercent of all batteries have a lifetime of more than:O a.499.16 hoursb. 532.83 hoursOC 516 hoursO d. 20 hours

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The lifetime of a 2-volt non-rechargeable battery in constant use has a Normal distribution, with a mean of 516 hours and a standard deviation of 20 hours. Eighty percent of all batteries have a lifetime of more than: O a.499.16 hours b. 532.83 hours OC 516 hours O d. 20 hours