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The physical plant at the main campus of a large state university recieves daily requests...

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The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs The distribution of the number of daily requests is bell shaped and has a mean of 38 and a standard deviation of 4 Using the empirical rule what is the approximate percentage of lightbulb replacement requests numbering between 38 and 42 Use 68 95 99 7 and do not enter the percent symbol ans 6

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