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simultaneously switched on September 25, 2021. What is the probability that 5 are still lighted on Christmas day 2021?

simultaneously switched on September 25, 2021. What is the probability that 5 are still lighted on Christmas day 2021?

MATLAB: An Introduction with Applications
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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Nine lamps run on batteries whose average life is 2 months. With new batteries, they were simultaneously switched on September 25, 2021. What is the probability that 5 are still lighted on Christmas day 2021?
Transcribed Image Text:Nine lamps run on batteries whose average life is 2 months. With new batteries, they were simultaneously switched on September 25, 2021. What is the probability that 5 are still lighted on Christmas day 2021?
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