Question

The mean of the data for the resting heart rate of adults is 68 beats per minute, and the standard deviation is 2 beats per minute. The results of the data were normally distributed. About what percentage of the population has a resting heart rate between 70 and 74?

Answer 1

The mean of the data for the resting heart rate of adults is 68 beats per minute, and the standard deviation is 2 beats per minute

Therefore,

`\begin{gathered} \mu=68 \\ \sigma^2=2 \end{gathered}`

To determine

[tex]P(70Now, using the normal distribution table[tex]P(70Multiplying 0.1573 by 100, the result is 15.73%

Therefore, 15.73% of the population has a resting heart rate between 70 and 74