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 48 and a standard deviation of 8. Using the 68-95-99.7 rule, what is the approximate percentage of lightbulb replacement requests numbering between 24 and 48?

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Q: The maintenance department at the main campus of a large state university receives daily requests to…

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Q: what is the approximate percentage of lightbulb replacement requests numbering between 29 and 47?

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