Suppose that 50 identical batteries are being tested after

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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 between 25 and 30 batteries (inclusive) will last at least 8 hours?

A. 0.1186

B. 0.9169

C. 0.7792

D. 0.0839

Reference no: EM13629089

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