Mathematics, 26.08.2021 03:20, deejayjaytee
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 63 and
a standard deviation of 9. Using the 68-95-99.7 rule, what is the approximate percentage of lightbulb
replacement requests numbering between 63 and 72?
Do not enter the percent symbol.
ans =
Answers: 3
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