A very old water system in a manufacturing plant has 4 independent valves that have a (50
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A very old water system in a manufacturing plant has 4 independent valves that have a \(50 \%\) chance of working correctly over a year. The valves are checked yearly to make sure a valve is either bad (B) or good (G). Find the mean number of good valves in the system.
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Elementary Statistics A Step By Step Approach
ISBN: 9781260360653
11th Edition
Authors: Allan Bluman
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