A laptop company claims up to 8.0 hours of wireless web usage for its newest laptop battery life. However, reviews on this lapto shows many complaints about low battery life. A survey on battery life reported by customers shows that it follows a normal distribution with mean 7.5 hours and standard deviation 33 minutes. (a) What is the probability that the battery life is at least 8.0 hours? Round your answer to four decimal places (e.g. 98.7654). P = (b) What is the probability that the battery life is less than 7.0 hours? Round your answer to four decimal places (e.g. 98.7654). P = (c) What is the time of use that is exceeded with probability 0.9? Round your answer to two decimal places (e.g. 98.76). The time of use that is exceeded with probability 0.9 is i h
A laptop company claims up to 8.0 hours of wireless web usage for its newest laptop battery life. However, reviews on this lapto shows many complaints about low battery life. A survey on battery life reported by customers shows that it follows a normal distribution with mean 7.5 hours and standard deviation 33 minutes. (a) What is the probability that the battery life is at least 8.0 hours? Round your answer to four decimal places (e.g. 98.7654). P = (b) What is the probability that the battery life is less than 7.0 hours? Round your answer to four decimal places (e.g. 98.7654). P = (c) What is the time of use that is exceeded with probability 0.9? Round your answer to two decimal places (e.g. 98.76). The time of use that is exceeded with probability 0.9 is i h
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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