SOLUTION: 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 th

SOLUTION: 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 th

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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?

Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
z=(x-mean)/sd
so it is z<+2
the rule above says that 2.5 % are above 2sd (and 2.5 below 2sd).
The answer then is 97.5%.
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