The systollc blood pressure (BP) of adults In the USA Is nearly normally distributed with a mean of 121 and standard devlation of 15. 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 > Next Question

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