The systolic blood pressure (BP) of adults in the USA is nearly normally distributed with a mean of 120 and standard deviation of 23 . 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 *two decimal places*. ________mmHg Thank you.
The systolic blood pressure (BP) of adults in the USA is nearly
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 *two decimal places*.
________mmHg
Thank you.
If Z is a normal variate with mean=, S.D==1, then Z is called a standard normal variate, and the distribution of Z is called a standard normal variate, and the distribution of Z is called a standard normal distribution.
The standard normal curve is bell-shaped.
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