Posted by **bibi** on Sunday, September 18, 2011 at 2:00pm.

Empirical rule the authors generac generator produces voltage amounts with a mean of 125.0 volts and a standard deviation of 0.3 volt,and the voltage have a bell-shape distribution.using the empirical rule,what is the approximate percentage of voltage amounts between 124.4 volts and 125.6 volts?

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