Mathematics, 29.03.2021 01:00 lilbloke

The maintenance department at the main campus of a large state university receives daily requests to replace fluorecent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a
mean of 53 and a standard deviation of 11. Using the 68-95-99.7 rule, what is the approximate percentage
of lightbulb replacement requests numbering between 53 and 86?
Do not enter the percent symbol.

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