Homework Help: statistic

Posted by marie on Sunday, September 18, 2011 at 2:11pm.

Chebyshev's thereon- the author's generac produces voltage amounts with a mean of 125.0 volts and a standard deviation of 0.3 volt. using chebyshev's theorem,what do we know about the percentage of voltage amounts that are within 3 standard deviations of the mean? What are the minimum and maximum voltage amounts that are within 3 standard deviations of the mean?

statistic - PsyDAG, Sunday, September 18, 2011 at 6:46pm
Within 3SD on either side are .4987. Multiply by 200 to get percentage.

You want mean ą 3 SD for min and max. Insert the values and solve.

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