Use a z-table such as https://www.math.arizona.edu/~rsims/ma464/standardnormaltable.pdf or an online calculator such as  http://onlinestatbook.com/2/calculators/normal_dist.html to answer the following question: This question again refers to the study on blood pressure.  What proportion of the population has a blood pressure that is between the values of 109.1 mmHg and 122.9 mmHg for a normally-distributed set of blood pressures with a mean of 120.1 mmHg and a standard deviation of 15.1 mmHg?  Express your answer as a percentage rounded off to 1 decimal place.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
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Use a z-table such as https://www.math.arizona.edu/~rsims/ma464/standardnormaltable.pdf or an online calculator such as  http://onlinestatbook.com/2/calculators/normal_dist.html to answer the following question:

This question again refers to the study on blood pressure.  What proportion of the population has a blood pressure that is between the values of 109.1 mmHg and 122.9 mmHg for a normally-distributed set of blood pressures with a mean of 120.1 mmHg and a standard deviation of 15.1 mmHg?  Express your answer as a percentage rounded off to 1 decimal place.

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