The systolic blood pressure (BP) of adults in the USA is nearly normally distributed with a mean of 121 and standard deviation of 18. Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. (a) 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? Give your answer rounded to two decimal places. % (c) Your doctor tells you that you are in the 30th percentile (e.g. bottom 30%) for blood pressure among US adults. What is your systolic BP? Give your answer rounded to the nearest whole number. mmHg Submit Question

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The systolic blood pressure (BP) of adults in the USA is nearly normally distributed with a mean of
121 and standard deviation of 18.
Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or
higher.
(a) 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? Give your answer rounded to two decimal places.
%
(c) Your doctor tells you that you are in the 30th percentile (e.g. bottom 30%) for blood pressure
among US adults. What is your systolic BP? Give your answer rounded to the nearest whole number.
mmHg
Submit Question
Transcribed Image Text:The systolic blood pressure (BP) of adults in the USA is nearly normally distributed with a mean of 121 and standard deviation of 18. Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. (a) 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? Give your answer rounded to two decimal places. % (c) Your doctor tells you that you are in the 30th percentile (e.g. bottom 30%) for blood pressure among US adults. What is your systolic BP? Give your answer rounded to the nearest whole number. mmHg Submit Question
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