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Question
The population of lengths of aluminum-coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.2 inches. A sample of four metal sheets is randomly selected from a batch. What is the probability that the average length of a sheet is between 30.25 and 30.35 inches long?A. .9773
B. .0227
C. .0386
D. .0215
Answer
This answer is hidden. It contains 2 characters.
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