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In: Statistics and Probability

24. Assume that the resting heart rate in humans is normally distributed with a population mean...

24. Assume that the resting heart rate in humans is normally distributed with a population mean of 72 bpm and a standard deviation of 8 bpm.

a. What proportion of the population has resting heart rates between 70 and 82 bpm?

b. What proportion of the population has resting heart rates between 50 and 75 bpm?

c. What proportion of the population has resting heart rates between 60 and 70 bpm?

d. What proportion of the population has resting heart rates between 55 and 69 bpm?

24. A population of scores has a mean of 56. In this population, a raw score of 40 corresponds to a z score of -4. What is the population standard deviation?

25. A population of scores has a standard deviation of 5. In this population a raw score of 45 corresponds to a z score of 1.5. What is the population mean?

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orchestra answered 1 year ago
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