IsabellaStruck2130 IsabellaStruck2130

22-12-2018
Mathematics

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Suppose that 50 identical batteries are being tested. after 8 hours of continuous use, assume that a given battery is still operating with a probability of 0.70 and has failed with a probability of 0.30. what is the probability that greater than 40 batteries will last at least 8 hours?

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sqdancefan sqdancefan

23-12-2018

Answer:

about 0.04023

Step-by-step explanation:

My probability calculator says that probability is about 0.04023.

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