document.write( "Question 1191998: Assume the resting heart rates for a sample of individuals are normally distributed with a mean of 85 and a standard deviation of 5. What is the relative frequency of rates less than 95 using the 68-95-99.7 rule?
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Algebra.Com's Answer #823877 by Boreal(15235)\"\" \"About 
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z=(x-mean)/sd
\n" ); document.write( "so it is z<+2
\n" ); document.write( "the rule above says that 2.5 % are above 2sd (and 2.5 below 2sd).
\n" ); document.write( "The answer then is 97.5%.
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