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The systolic blood pressure of adults in the USA is nearly normally distributed with a mean...

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Question

Basic Math

The systolic blood pressure of adults in the USA is nearlynormally distributed with a mean of 117 and standard deviation of21 .

Someone qualifies as having Stage 2 high blood pressure if theirsystolic blood pressure is 160 or higher.

a. Around what percentage of adults in the USA have stage 2 highblood pressure? Give your answer rounded to two decimalplaces.

%





b. If you sampled 2000 people, how many would you expect to haveBP> 160? Give your answer to the nearest person. Note: I had abit of an issue encoding rounded answers, so try rounding both upand down if there's an issue!

people





c. Stage 1 high BP is specified as systolic BP between 140 and 160.What percentage of adults in the US qualify for stage 1?

%



d. Your doctor tells you you are in the 30th percentile for bloodpressure among US adults. What is your systolic BP? Round to 2decimal places.

lbs

Answer & Explanation Solved by verified expert
4.3 Ratings (585 Votes)
a Let X denotes the systolic blood pressure of a    See Answer
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