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Physics, 05.09.2019 17:30 lexigarwood
It has been observed that electrical connectors manufactured by jolt electrical supply company last an average of 18.2 months and follow a normal distribution with a standard deviation of 1.7 months. jolt agrees to replace any connector that fails within 19 months. out of 500 connectors sold, how many does jolt expect to replace, on average?
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