# The resting heart rates for a sample of individuals are normally distributed with a mean of 70 and a standard deviation of 15. How do you find the percentage of heart rates less than 85?

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Use the 68-95-99.7 rule.

Use the 68-95-99.7 rule.

##### 1 Answer

Mar 9, 2018

#### Answer:

84%

#### Explanation:

The empirical rule states that 68% values are within 1 standard deviation of mean, i.e, **84%**