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The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 122 and standard deviation of 24. a. Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. % b. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1? Round to 2 decimal places. % c. Your doctor tells you you are in the 45 th percentile for blood pressure among US adults. What is your systolic BP? Round to 2 decimal places. mmHg Interpret the 45 th percentile, what does this mean? d. What two values divide this normal curve into a middle 91%, in other words, what two values represent the middle 91% of blood pressures? Put the lower number FIRST! mmHg and e. How many standard deviations away from the mean would a blood pressure of 145 be? f. Would this be considered unusual? Very Unusual

The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 122 and standard deviation of 24. a. Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. % b. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1? Round to 2 decimal places. % c. Your doctor tells you you are in the 45 th percentile for blood pressure among US adults. What is your systolic BP? Round to 2 decimal places. mmHg Interpret the 45 th percentile, what does this mean? d. What two values divide this normal curve into a middle 91%, in other words, what two values represent the middle 91% of blood pressures? Put the lower number FIRST! mmHg and e. How many standard deviations away from the mean would a blood pressure of 145 be? f. Would this be considered unusual? Very Unusual

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 3CYU
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The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 122 and standard deviation of 24. a. Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. % b. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1? Round to 2 decimal places. % c. Your doctor tells you you are in the 45 th percentile for blood pressure among US adults. What is your systolic BP? Round to 2 decimal places. mmHg Interpret the 45 th percentile, what does this mean? d. What two values divide this normal curve into a middle 91%, in other words, what two values represent the middle 91% of blood pressures? Put the lower number FIRST! mmHg and e. How many standard deviations away from the mean would a blood pressure of 145 be? f. Would this be considered unusual? Very Unusual
Transcribed Image Text:The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 122 and standard deviation of 24. a. Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. % b. Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1? Round to 2 decimal places. % c. Your doctor tells you you are in the 45 th percentile for blood pressure among US adults. What is your systolic BP? Round to 2 decimal places. mmHg Interpret the 45 th percentile, what does this mean? d. What two values divide this normal curve into a middle 91%, in other words, what two values represent the middle 91% of blood pressures? Put the lower number FIRST! mmHg and e. How many standard deviations away from the mean would a blood pressure of 145 be? f. Would this be considered unusual? Very Unusual
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